Head-to-head test
Anker SOLIX C300X vs Jackery Explorer 300 v2
Two near-identical 288Wh boxes, and the cheaper one is also the longer-lived one: the Jackery costs $31 less and is rated for 1,000 more charge cycles, so the C300X has to win the whole matchup on an app and a 140W USB-C port.
Written by Wenny ZhengUpdated
Portable Power Tester, Station Arena Test Desk
Anker
SOLIX C300X
1,638Power Score · Device Hub
$299.99 · direct from Anker
Last checked 6 days ago. Prices move — check before you buy.
Jackery
Explorer 300 v2
1,648Power Score · Device Hub
$269.00 · direct from Jackery
Last checked 6 days ago. Prices move — check before you buy.
Spec deltas
The Jackery Explorer 300 v2 costs $31 less than the Anker SOLIX C300X and is rated for 1,000 more charge cycles, and underneath they are the same box: 288Wh, 300W, a 600W surge, 100W of solar input, a five-year warranty. Set them side by side and the spec sheet barely blinks.
So the decision is about the handful of things that differ, and most of them cut toward the Jackery. It is nearly a pound lighter, it is cheaper to own at $0.23 per lifetime kilowatt-hour against $0.35, and its 4,000-cycle rating outlives the Anker's 3,000 on identical capacity. On our PowerScore the two finish a rounding error apart, 1,675 to 1,666.
The Anker answers with features, not energy. Its USB-C port pushes 140W to the Jackery's 100W, enough to fast-charge a large laptop the Jackery would only trickle, and it adds a Bluetooth app the Jackery simply doesn't have. That is the entire case for paying more, and for most buyers of a grab-and-go charger it isn't quite enough.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
rated cycles
Run that through cost of ownership and the gap widens instead of closing: $0.23 per lifetime kilowatt-hour on the Jackery against $0.35 on the C300X, so the Anker premium buys you no additional energy over the unit's life, only its app and its faster port.
Jackery v2 is $269 and rated for 4,000 cyclesC300X is $299.99 and rated for 3,000 cyclesboth carry the same 288Wh battery
Why it mattersA buyer choosing on value alone can stop reading here and take the Jackery.
That 40W of headroom is the Anker's most concrete everyday edge, but it only matters to someone who actually owns a 140W-class laptop; for a phone, a camera, or a drone battery, both ports finish at the same time.
C300X USB-C tops out at 140WExplorer 300 v2 USB-C tops out at 100Wa large laptop can pull up to 140W over USB-C
Why it mattersIf a big USB-C laptop is your main load, the C300X is the one to pay up for; otherwise the port gap never shows itself.
On 288Wh a 100W panel is a multi-hour refill either way, so the speed is a wash; the only real difference off-grid is that the Anker plugs in and the Jackery makes you find an adapter first.
Both units cap solar input at 100Wthe Jackery's solar port is a proprietary barrel jack that needs a separate adapterB4the C300X takes a standard solar input
Why it mattersThe occasional solar topper leans C300X for the connector, not for any charging advantage.
The specific dimensions that decide these two units — everything else is a tie.
Lifetime Value
Selected because: cheaperToOwn is p2 and the two are otherwise identical — this is the spine of the verdict.
cost / lifetime kWh
Same 288Wh, two prices and two lifespans, and both favor the Jackery. It is $269 to the Anker's $299.99 up front, and because it is rated for 4,000 cycles against 3,000 it delivers about 1,152 kWh over its life to the C300X's 864 — so it lands at $0.23 per lifetime kilowatt-hour where the Anker sits at $0.35. Cheaper to buy, and it stretches every dollar further before it wears out.
There is no runtime advantage on the other side of that ledger to buy the gap back, because the batteries are the same size. What the Anker's extra $31 buys is features you can name in a sentence, not energy you will ever use.
What the Specs Don't Tell You
Selected because: appControl, cycleLife, and noiseDisclosure all fire and all differentiate these near-twins.
rated cycles
Three flags separate these twins, and they don't all point the same way. The cycle-life note favors the Jackery, whose 4,000-cycle rating buys it a longer life than the Anker's 3,000 on the same battery. The app-control note favors the Anker, which has a Bluetooth app the Jackery does without entirely.
That app is a genuine double edge. Its best trick in testing was catching a portable fan drawing twice the wattage it should have, spotted in the usage historyA10. Its worst is the Bluetooth pairing you occasionally have to redo before any of that worksA1. The third flag, undisclosed noise, is the Jackery's: it never publishes a decibel figure, where the Anker prints 25 dB and independent testing found it near-silent at its rated loadA4. Quiet you can read on the box beats quiet you have to assume.
Brand Trust
Selected because: Cross-brand: Anker's app/support strength vs Jackery's weakest-app reputation is where the feature gap lives.
This is where the Anker's premium is supposed to live, and partly does. Its app is one of the better-regarded ones in the category and rides on Anker's consumer-electronics reputation; Jackery's app is widely rated the weakest of the major brands, when a given model has one at all. If you want to monitor and update from your phone, the C300X is plainly the more finished product.
The counterweight is that both brands' support has been sliding, and Jackery's is the more criticized of the two, with a standing recommendation to buy through a retailer with easy returns. For a $269 unit that mostly charges gear, that is a smaller worry than it would be on a whole-home battery, but it is a reason to keep your receipt either way.
PowerScore Breakdown
Selected because: A 9-point score gap needs explaining so nobody reads it as a real performance difference.
overall power score
The PowerScore reads 1,675 for the Jackery and 1,666 for the C300X, and a 9-point spread between two units this identical is not measuring performance. It is measuring the same value-and-longevity edges the price and cycle count already showed you, compressed into one number.
Read it as a tie that leans Jackery, and decide on the two things the score can't weigh for you: whether you want the app, and whether your laptop needs the 140W port.
Strengths & trade-offs
Anker SOLIX C300X
Strengths
- Solid all-rounder with standard specs.
Trade-offs
- –Shorter-lived battery — rated for 3,000 charge cycles vs the Explorer 300 v2's 4,000, so it wears out sooner.
Jackery Explorer 300 v2
Strengths
- +Costs $31 less
- +Lighter by 0.9 lb
- +Rated for 4,000 charge cycles — much longer battery lifespan
Trade-offs
- –Lacks smartphone app control for remote monitoring.
Will It Power Your Gear?
Scenario math and per-appliance runtimes, modeled from the spec record.
Scenario verdicts
We ran the math on seven real-world scenarios. Here's which unit survives your actual life.
SCN-01 · 2 nights · needs 2,100Wh
Weekend Camping
Two nights off-grid with essential comfort
Neither unit
Neither unit covers this scenario's 2,100Wh: the SOLIX C300X comes up 1,855Wh short (about 12% covered), the Explorer 300 v2 1,855Wh (12%). This is well outside what either unit is for; the right answer here is a larger station, not a choice between these two.
Battery budget usedlower = more headroom
LOAD Phone Charger 15W×6h · LED Lights 40W×8h · Box Fan 75W×14h · CPAP Machine 40W×16h
SCN-02 · 8 hours · needs 1,645Wh
8-Hour Blackout
Keep the essentials running through a night without power
Neither unit
Neither unit covers this scenario's 1,645Wh: the SOLIX C300X comes up 1,400Wh short (about 15% covered), the Explorer 300 v2 1,400Wh (15%). This is well outside what either unit is for; the right answer here is a larger station, not a choice between these two.
Battery budget usedlower = more headroom
LOAD Fridge 150W×8h · Router + Modem 20W×8h · LED Lights (4 bulbs) 40W×6h · Phone Charger 15W×3h
SCN-03 · 8 hours · needs 320Wh
CPAP Overnight
Sleep therapy without interruption — the #1 medical use case
Neither unit
Two feet from your head, this comes down to capacity and quiet, and the two are dead even on capacity: identical 288Wh, and the modeled full night with a humidifier runs both a touch short by the same margin. Break the tie on noise. The C300X prints a 25 dB figure and independent testing found it near-silent; the Jackery discloses nothing, which isn't the same as being loud but is a worse thing to bet your sleep on.
Battery budget usedlower = more headroom
LOAD CPAP Machine 40W×8h
SCN-04 · 8 hours · needs 910Wh
Remote Workday
Full work day off-grid without power anxiety
Neither unit
Neither unit covers this scenario's 910Wh: the SOLIX C300X comes up 665Wh short (about 27% covered), the Explorer 300 v2 665Wh (27%). Treat this as partial cover — enough for the essentials in it, not the whole list.
Battery budget usedlower = more headroom
LOAD Laptop 60W×8h · External Monitor 30W×8h · Router + Modem 20W×8h · Phone Charger 15W×2h
SCN-05 · 4 hours · needs 670Wh
Tailgate Party
Game day power for the crew
Neither unit
Neither unit can hold the 400W peak this scenario needs — the SOLIX C300X on its 300W continuous rating, the Explorer 300 v2 on its 300W, so capacity never gets a say. This is the wrong size of unit for the job rather than a close call.
Battery budget usedlower = more headroom
LOAD Blender 400W×0.5h · LED TV (55") 80W×4h · Bluetooth Speaker 15W×4h · Phone Charger (×3) 45W×2h
SCN-06 · 24 hours · needs 4,685Wh
Van Life Daily
A full day of mobile living — the ultimate endurance test
Neither unit
Neither unit covers this scenario's 4,685Wh: the SOLIX C300X comes up 4,440Wh short (about 5% covered), the Explorer 300 v2 4,440Wh (5%). This is well outside what either unit is for; the right answer here is a larger station, not a choice between these two.
Battery budget usedlower = more headroom
LOAD Mini-Fridge 150W×24h · Laptop 60W×4h · Phone Charger 15W×3h · LED Lights 40W×5h · Fan 75W×8h
SCN-07 · an afternoon · needs 100Wh
Afternoon Off-Grid
Phones and a speaker at the park, beach, or campsite — the small-unit job description
Either unit
This is the job small stations are actually for, and both do it: the SOLIX C300X finishes at 41% used, the Explorer 300 v2 at 41%. At this size the decider is what rides in the bag — 8.1 lbs for the Explorer 300 v2 against 9 for the SOLIX C300X — and price, not the leftover watt-hours.
Battery budget usedlower = more headroom
LOAD Phone Charger (×2) 30W×2h · Bluetooth Speaker 10W×4h
The Load Test
RUNTIME = (Wh × 0.85) ÷ LOAD
None of the scenarios above exactly yours? Build it. Toggle what you'd plug in; both units are tested against the combined draw.
Essentials
Comfort & Convenience
High-Draw Appliances
Test duration
8h
Continuous draw
205W
Projected runtime
Dead heat — both run this 205W load for roughly 1.2h. Pick on price, weight, or ports.
Modeled from the spec record — same math as the tables below. Methodology
Runtime by appliance
Real-world runtime estimates for common appliances, modeled at 85% inverter efficiency.¹
Essentials
The basics you need runningscale 0–16.3hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–3.3hHigh-Draw Appliances
These reveal the real limits¹ Runtime = (capacity × 0.85) ÷ appliance watts. Within each group, all bars share one time scale (the group's longest runtime), so lengths are comparable across appliances; identical runtimes collapse into a single blue/orange bar. Actual runtime varies with battery age, temperature, and simultaneous loads — see methodology.
Conclusion
July 18, 2026
Verdict: the Explorer 300 v2
Take the Jackery Explorer 300 v2 unless you have a specific reason not to. It is the cheaper box to buy and the cheaper box to own, $269 against $299.99 and $0.23 per lifetime kilowatt-hour against the C300X's $0.35, and it is rated for 4,000 cycles to the Anker's 3,000 on the same 288Wh battery. When two units are this close, the one that costs less at the register and less over its life wins by default. The C300X earns its premium in exactly two places: a 140W USB-C port that fast-charges a big laptop the Jackery's 100W port can't, and a Bluetooth app whose usage history genuinely caught a phantom fan draw in testingA10. Both are real. Neither is worth a shorter-lived, pricier battery to a buyer who mostly tops off phones and cameras. Worth saying plainly: the Jackery is the barer unit, with no app and an undisclosed noise figure, and its solar input runs through a proprietary barrel jack that needs a separate adapterB4.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of July 18, 2026. The links below open Anker's and Jackery's current prices.
$269.00 · direct from Jackery
Last checked 6 days ago. Prices move — check before you buy.
or check the SOLIX C300X price$299.99 list
Written by Wenny Zheng, Portable Power Tester · Station Arena Test Desk · Updated July 18, 2026
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
Full specifications
ᵈ Derived: price ÷ rated capacity. See the data behind our comparisons →
Comparison ToolAdd more power stations, side by sideOpen Tool →How these numbers are produced
Numeric verification
Every figure on this page traces to our spec database or arithmetic on it — no estimated numbers.
Owner claims
Statements about owner experience are cited to published reviews — see Sources & Research Notes below.
Runtime model
Runtime = (rated capacity × 0.85 inverter efficiency) ÷ device wattage. Solar recharge estimates assume panels deliver 70% of rated output. Cold weather, battery age, and stacked loads reduce real-world results.
Power Score
Computed from 14 published spec dimensions, weighted per use-case bench. Higher is better; a unit must meet a bench's minimum threshold to be rated.
See the full weight table and data sourcing on our methodology page →Class ranking (the star rating)
Each unit's star score is a category ranking, not customer reviews — no buyer opinions feed it. We score every station on size-independent quality (value, output, portability, endurance, ports, warranty, and more), then percentile-rank it against the other units in its capacity class, so a class-leading compact unit and a class-leading whole-home unit can both earn 5★. Here, SOLIX C300X rates 4.7/5 (81st percentile of 22 Personal-class units), and Explorer 300 v2 rates 4.8/5 (90th percentile of 22 Personal-class units).
How the class ranking is computed →Test Notes & Caveats
Hidden gotchas and advantages we spotted that you won't find on the product page.
One has an app; the other doesn't
The C300X adds Bluetooth monitoring, usage history, and firmware updates from your phone. The Explorer 300 v2 has none of that. It's a real convenience if you'll use it, and also the part of the Anker that draws the most setup friction, so weigh it as a feature you'll manage, not a free win.
Warranty: No Difference
Both units carry the same 5-year warranty, so coverage isn't a tiebreaker here.
Same battery, different odometer
The Jackery is rated for 4,000 charge cycles to the C300X's 3,000 on identical 288Wh capacity. That is the quiet reason it costs less per lifetime kilowatt-hour despite being the cheaper unit up front. On a small box you'll rarely cycle to death it won't decide your week, but it is the Jackery's edge, not the Anker's.
A number you can read vs one you can't
The C300X publishes 25 dB and independent testing backed it up at its rated load. Jackery doesn't disclose a decibel figure for the v2 at all. Undisclosed isn't the same as loud, but for anything that shares a quiet room, a printed-and-verified number is worth more than an assumption.
Full record above — the Test Desk pick is the Explorer 300 v2.
Check Explorer 300 v2 price →or check the SOLIX C300X priceOwnership Analysis
What happens after you buy — true cost of ownership, brand trust, and growth potential.
Lifetime value
Service lifeyears at one full cycle per day
Lifetime energy delivered
Cost per delivered kWh
│ warranty ends · Reaching the cycle rating means ~80% capacity remains — degraded, not dead.
Analyst note
The Explorer 300 v2 wins on both sticker price and long-term value. At $0.23/kWh over its lifetime, it's meaningfully cheaper to own. Clear value winner.
Delivers each lifetime kWh for $0.12 less — check the Explorer 300 v2 price →
Brand trust
Anker
Ecosystem
7-8 SOLIX portable power stations across C-series (compact) and F-series (flagship), plus the X1 home energy system
Support
US-based support. Historically known for incredible no-hassle replacements, but recent reports describe AI-driven support agents giving generic responses and complex return logistics for heavy units (hazmat shipping). The Anker brand reputation is still strong, but SOLIX-specific support quality is trending down.
Community
Moderate — active Reddit (r/Anker, r/AnkerSOLIXCommunity) and growing. Benefits from Anker's massive consumer electronics brand awareness.
App experience
Rated 4.5/5 iOS (~1,100 ratings) · 4.3/5 Android
Unique strength
Parent brand trust from Anker's consumer electronics dominance. InfiniPower technology for long cycle life. Strong $/Wh value in the mid-size and larger units — the S2000, F2600 and C1000 are among the better buys per watt-hour in the catalog.
Worth knowing
Support quality appears to be declining from its historically excellent level. Firmware updates have removed features without warning. Expansion ecosystem is smaller than EcoFlow's.
Jackery
Ecosystem
12-15+ models across Explorer (portable) and HomePower (home backup) series, plus SolarSaga panel ecosystem and innovative form factors
Support
US-based support but widely criticized. Reddit reports describe slow/dismissive responses, scripted AI agents, strict receipt requirements for warranty claims, and refurbished replacements for clearly defective units. Strongly recommended: buy from Costco or Amazon for return protection.
Community
Smallest community of the major brands — Reddit r/Jackery has ~2,000 members. YouTube presence is solid due to brand recognition.
App experience
Rated 2.3-3.3/5 iOS and Android — the weakest app experience of the major brands. Multiple confusing apps (Jackery app vs Jackery Home) and mandatory login even offline.
Unique strength
Highest brand recognition and widest retail distribution (Costco, Home Depot, Best Buy, Amazon). The "Toyota" of power stations — dependable, proven, wide availability. Innovative form factors like the Solar Gazebo and Solar Mars Bot.
Worth knowing
A couple of older models still ship NMC chemistry with a shorter rated lifespan, so check the cycle rating on the specific unit — though most of the current line has moved to LFP. Generally perceived as overpriced for the specs offered compared to newer competitors. App experience is significantly behind rivals.
Analyst note
Anker and Jackery are close competitors. Both have established support channels and growing ecosystems. Compare their specific warranty terms and community size for your peace of mind.
Growth path
SOLIX C300X
FIXED CAPACITYFixed at 288Wh, with no expansion — so size it for your needs up front rather than planning to add capacity later.
Accepts up to 100W of solar. Limited to a single portable panel.
Adequate ports for most setups, but heavy users may want a power strip.
Explorer 300 v2
FIXED CAPACITYFixed at 288Wh, with no expansion — so size it for your needs up front rather than planning to add capacity later.
Accepts up to 100W of solar. Limited to a single portable panel.
Limited ports. You'll likely need a power strip or splitter.
Realistic full solar rechargeat 70% of rated panel output — see methodology
Analyst note
Neither expands, and that's no knock on either — each is a complete unit at a fixed size. They hold the same 288Wh, so capacity can't break the tie: decide on price, weight, and the rest, and know that whichever you pick is the ceiling.
What Owners Report
Patterns from published owner reports and long-term reviews — every claim cited to its source below.
Anker SOLIX C300X
The C300X's field record is the richer of the two, and its standout is the app's usage history: one reviewer used it to notice a portable fan pulling twice the wattage expectedA10, and separately confirmed a pulled-plug UPS test that kept a computer, router, and CPAP running with no flickerA7. Independent testing also found it near-silent at its rated 300W load, with the fan only becoming audible under a heavy overload drawA4A11. The carry handle showed no wear after dozens of trunk loadsA12.
The concrete gripes both sit in the app and charging pipeline. Owners have reported Bluetooth pairing dropouts that block monitoring until you re-pairA1, and one owner reported the battery refusing to charge past 25%A2. There is also a power-saving quirk worth knowing: the unit shuts off when it thinks the load is trivial, which catches people charging headphones or a smartwatch off guardA3.
“The unit was confirmed to shut itself off when charging very low-draw devices like headphones or a smartwatch — an intended power-saving cutoff rather than a defect, but one that catches owners off guard.”
Sources
teqclub.com · thesolarlab.com · backuppowerhub.com
Jackery Explorer 300 v2
Field data on the Explorer 300 v2 is genuinely thin, consistent with a newer, lower-volume unit, so treat this as directional. What owners do say is upbeat about the basics: one uses it for an event-rental business and bought a secondB1, and another praised how quickly it charges and how light it is for topping off phones, cameras, and dronesB2.
The friction is all in the accessories. One buyer found the 12V car cable pictured on the box wasn't actually included and had to track it down separatelyB3, and another flagged that the solar input uses a proprietary barrel jack, so charging from a panel needs an extra adapter that adds cost and a little lossB4. Small annoyances on an otherwise well-liked box, but the kind you'd rather know about before the first trip.
“Uses the unit for an event rental business and made it a repeat (second) purchase — likes not having to worry about finding electrical outlets nearby at events.”
Sources
walmart.com
Sources & Research Notes
Every owner claim in this report is traceable to a published source. The bracketed references above resolve here.
Recurring owner themes
- Independent hands-on reviewers found the C300X near-silent at its rated 300W load, though one test noted the fan becoming noticeably audible under a heavier transient/overload draw. [SOLIX C300X · 2 entries]
- AC charging and UPS switchover both performed at or better than spec in hands-on testing — fast wall recharge and an imperceptible transfer that kept a computer, router, and CPAP running through a pulled plug. [SOLIX C300X · 2 entries]
- The most concrete owner-reported defects both sit in the app/charging pipeline: a Bluetooth pairing dropout that blocks monitoring, and a specific report of the battery refusing to charge past 25%. [SOLIX C300X · 2 entries]
- Buyers who use it for grab-and-go power (event work, road trips, device top-offs) like the fast charging and light weight enough to become repeat customers. [Explorer 300 v2 · 2 entries]
- The charging/accessory ecosystem is the recurring friction point — a 12V cable pictured but not included in the 'Auto Kit', and a proprietary DC7909 solar input that requires a separate adapter. [Explorer 300 v2 · 2 entries]
- A1
“Users reported trouble connecting the C300X to the Anker app, which blocked monitoring power usage and changing settings; re-pairing by "forgetting" the device in Bluetooth settings and reconnecting through the app usually fixed it.”
teqclub.com — "Solving Common Anker C300X Problems" · unknown · [negative]
- A2
“My Anker solix c300x Portable Power Station will not accept charge more than 25%.”
teqclub.com — "Solving Common Anker C300X Problems" (quoted owner comment) · unknown · [negative]
- A3
“The unit was confirmed to shut itself off when charging very low-draw devices like headphones or a smartwatch — an intended power-saving cutoff rather than a defect, but one that catches owners off guard.”
teqclub.com — "Solving Common Anker C300X Problems" · unknown · [mixed]
- A4
“This unit is impressively quiet. Even with the internal fans running when we pushed it to its limits, the C300X makes virtually no noise.”
thesolarlab.com — "Anker C300X Power Station Review" · 2026 · [positive]
- A7
“Pulling the AC plug mid-use while a computer, router, modem, and CPAP machine were running, the computer stayed on without interruption — no screen flicker, no system hiccup.”
backuppowerhub.com — "Anker SOLIX C300X Review" · 2026 · [positive]
- A10
“The app's most useful function was over-the-air firmware updates and historical usage data — the reviewer used the history to notice a portable fan was drawing twice the wattage expected.”
backuppowerhub.com — "Anker SOLIX C300X Review" · 2026 · [positive]
- A11
“Under a 500W circular saw load, the fan ramped up noticeably — a contrast to how quiet the unit stays at its rated 300W.”
backuppowerhub.com — "Anker SOLIX C300X Review" · 2026 · [mixed]
- A12
“The C300X feels premium in a way many budget power stations don't; the carry handle showed no wear or flex after dozens of trunk loads.”
backuppowerhub.com — "Anker SOLIX C300X Review" · 2026 · [positive]
- B1
“Uses the unit for an event rental business and made it a repeat (second) purchase — likes not having to worry about finding electrical outlets nearby at events.”
Walmart.com customer reviews — Jackery Explorer 300v2 Auto Kit listing · unknown · [positive]
- B2
“Reviewer praises how quickly it charges and its light weight, calling it a great starting point for power backup, road trips, or topping off phones, cameras, and drones.”
Walmart.com customer reviews — Jackery Explorer 300v2 Auto Kit listing · unknown · [positive]
- B3
“Box art shows a 12V car charger, but the cable isn't actually in the box — buyer had to track down the cord separately; Jackery support pointed them to hello@jackery.com / 888-502-2236 to sort it out.”
Walmart.com customer reviews — Jackery Explorer 300v2 Auto Kit listing · unknown · [negative]
- B4
“Charging port is a proprietary DC7909 jack rather than a standard connector, so solar charging needs an extra adapter — reviewer notes it adds cost/hassle and some perceived charging power loss.”
Walmart.com customer reviews — Jackery Explorer 300v2 Auto Kit listing · unknown · [negative]
Research compiled July 18, 2026.
Who Should Buy Which
Buy the SOLIX C300X if you…
- →The person whose main load is a 140W-class laptop: the C300X's USB-C port is the one that refills it at full speed while you keep working.
- →The buyer who wants to monitor and update from a phone: the app's usage history is a real toolA10, and it is the finished, app-connected unit of the two.
- →Anyone who runs a CPAP off it and wants the noise number in writing: the C300X publishes 25 dB and independent testing backed it upA4.
Buy the Explorer 300 v2 if you…
- →The value buyer: $269 for the same 288Wh, nearly a pound lighter, and rated to outlast the Anker at 4,000 cycles.
- →The grab-and-go charger who tops off phones, cameras, and drones and never opens an appB2.
- →The keep-it-simple owner who would rather not pay $31 for a Bluetooth connection they won't use.
If neither fits
If your plan is to run a fridge, an AC unit, or a whole evening of a blackout, 288Wh is too small for either one — every one of those scenarios comes up short here, so size up to a 500Wh-plus unit. And if you truly only charge USB devices, a large USB-C power bank is cheaper and fits in a bag.
The Bottom Line
The Jackery Explorer 300 v2 is the same 288Wh box as the C300X for $31 less, nearly a pound lighter, and rated to outlive it at 4,000 cycles against 3,000. When two units are this close, cheaper to buy and cheaper to own is the whole argument, and the Jackery wins both. Its bareness is honest, not hidden: no app, an undisclosed noise figure, and a solar port that wants an adapterB4.
Buy the C300X only if you can name your reason: a 140W laptop that needs the faster port, or an app you'll actually open and use to catch a phantom drawA10. Both are real upgrades. For everyone else charging phones and cameras on the go, the cheaper, longer-lived Jackery is the smarter box.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
What's the real difference between the Anker C300X and the Jackery Explorer 300 v2?
Less than the badges suggest. Both are 288Wh, 300W units with a 600W surge, 100W solar input, and a five-year warranty. The Jackery is $31 cheaper, nearly a pound lighter, and rated for 4,000 cycles to the Anker's 3,000. The Anker counters with a 140W USB-C port versus 100W and a Bluetooth app the Jackery lacks.
Which one is cheaper to own over time?
The Jackery, and on two counts. It is cheaper up front at $269 against $299.99, and its 4,000-cycle rating spreads its cost over more energy, landing at $0.23 per lifetime kilowatt-hour where the C300X sits at $0.35. Same battery, lower cost per use, so unless you specifically want the Anker's features it's the better value.
Is the C300X's app worth the extra money?
Only if you'll use it. Its most useful function is usage history, which in testing flagged a device drawing twice the wattage expected, and it handles firmware updates. But it's also the source of the unit's most common gripe, an occasional Bluetooth pairing dropout. If you just want to charge things and walk away, you're paying for a feature you'll leave closed.
Can either one run a CPAP overnight?
For a basic machine, yes, but neither has much margin once a heated humidifier is in the mix, and the modeled full night runs both a little short. If quiet matters at the bedside, the C300X is the safer pick because it publishes a 25 dB figure that testing confirmed, while Jackery doesn't disclose a noise level at all.
Where to buy
Anker SOLIX C300X
$299.99
$299.99 · direct from Anker
Last checked 6 days ago. Prices move — check before you buy.
Jackery Explorer 300 v2Pick
$269.00
$269.00 · direct from Jackery
Last checked 6 days ago. Prices move — check before you buy.
Prices may vary by retailer and are subject to change.