Product line comparison

SOLIX E10vsEPSeries

Anker sells one system that scales further and carries its energy lighter. BLUETTI sells two under one name — and the better one really is better, if you know to ask for it.

SOLIX E10 Series

Hardwired whole-home backup — the line you don’t carry.

9 models/6,144–61,440 Wh/78% expandable

EP Series

Wall-mounted whole-home systems.

14 models/5,120–39,680 Wh/64% expandable

Models compared: 239 + 14
Capacity spanned: 5,120–61,440Wh
Ranges overlap: 75%of the band
Genuine rivals: 4model pairs

Every model in the SOLIX E10 and EP lines, drawn at true relative size and positioned by capacity from 5,120 to 61,440 watt-hours.

This compares two entire product lines, not two units. Get the line right and the model almost picks itself. Get it wrong and no amount of comparing model numbers will rescue the decision. Already know the two units you're torn between? Compare two products head-to-head

What each line is for

Two lines, two different jobs

Anker SOLIX E10

Runtime-forward

SOLIX E10 is one design taken as far as it goes. A power module, a stack of identical batteries, and a dock that hands the house over when the grid drops. Need more? You add another power module, not a different product. It’s built to live outside — sealed, rated well below freezing, and smart enough to pick which circuits matter once the battery is the one deciding. There’s one thing to learn here, and it grows with you.

BLUETTI EP

Power-forward

EP is BLUETTI’s home-backup family, and it’s been around long enough to have a history. That history is the point: the line spans a value tier and a premium tier that share a name, a battery module, and very little else. Both hardwire to the panel. Both stack. Both do the job. But the choice inside EP is a real one — and you make it before you start comparing BLUETTI to anybody.

The comparability question

Are these two lines even competing?

Before asking which is better, it's worth asking whether they overlap at all.

These two overlap more than almost any pair on the site. Three quarters of their capacity ranges sit on top of each other, and at several rungs you’re buying the same stored energy either way. This isn’t two different tools sharing a shelf. It’s a genuine head-to-head — and the models that collide are the ones most people actually buy.

The complication is that "BLUETTI EP" isn’t one thing. The EP900 half switches over about twice as fast, lasts far more cycles, and comes with a stated warranty. The EP800 half is the value entry, and it gives up all three. Anker has no such split: same switchover, same cycle rating, same warranty, smallest configuration to largest. So the honest question isn’t "Anker or BLUETTI" — it’s "Anker versus whichever BLUETTI you were about to buy." Quote one EP number without saying which half it came from and you haven’t said enough to decide on.

Where they really diverge is character, not capability. Anker holds more energy per pound and keeps stacking after BLUETTI runs out of room. BLUETTI puts more inverter and more solar behind every watt-hour it stores. Neither is better in the abstract. They answer different questions about what your house does when the grid goes away.

Fig. 1 — Every model in both lines, by capacity and output. The two lines form separate clusters — the narrow band where they touch is the only place the choice is genuinely close.

The short version

These two share 75% of their capacity range, and 4 of the 23 models between them land on a genuine head-to-head. This is one of the closer calls on the site — you could be happy with either, so what decides it is going to be something other than size.

The deep dive

What actually separates them

Five specifications that decide which line fits — and one that doesn't.

Energy per pound

Watt-hours per pound is how much energy you get for the mass you have to mount and shelter. Nobody carries a wall-mounted system, but the number still decides how much wall a given stack eats — and whether it needs reinforcing.

SOLIX E10

40.9 Wh/lb

30.8 Wh/lb

This is Anker’s clearest win, and it isn’t a small one. Its battery modules hold noticeably more energy for their mass, so the same kilowatt-hours take up less of your garage and put less load on whatever they’re bolted to. If what’s tight is space or structure rather than budget, this axis settles it.

Power character

Output divided by capacity tells you what a system is shaped to do. A high ratio is a big inverter on a modest pack: runs heavy things hard, not for long. A low ratio is a big reservoir behind a moderate inverter — fewer things at once, for a lot longer.

SOLIX E10

0.41 W/Wh

0.59 W/Wh

BLUETTI puts more inverter behind each watt-hour, and that’s the whole difference in philosophy. An EP carries a demanding house through an evening. A SOLIX E10 carries a moderate one through a long outage. Ask how many days you’re planning for, not how many appliances.

Fig. 2 — Output per watt-hour, every model, highest first. High bars are burst tools — they start demanding appliances but do not run them long. Low bars are endurance tools. Two units with the same capacity can sit at opposite ends of this chart.

Solar throughput

Solar input per watt-hour of storage is how fast a system refills itself from the roof. It sets how long an outage can run before the battery stops being the answer. A big pack that recharges slowly is a fixed budget, not a renewable one.

SOLIX E10

0.49 W per Wh

0.60 W per Wh

BLUETTI takes more solar per unit stored, and this one holds across both halves of the line — so it’s one of the few EP numbers you can trust without asking which tier you’re looking at. Planning for off-grid or a multi-day outage? Refill rate beats the last few kilowatt-hours of capacity.

Room to grow

Expandability here isn’t whether you can add a battery — both lines stack by design. It’s what share of the configurations sold still have headroom, which is really a measure of how often the version you buy is the version you’re stuck with.

SOLIX E10

78%

64%

More of Anker’s configurations still have somewhere to go, and its ceiling sits higher — it keeps taking modules after EP has topped out. If you expect to grow into a heat pump, an EV charger or an extension, don’t buy the one that’s already out of room.

Fig. 3 — How much of each line can grow later. A sealed unit's ceiling is the box you bought; an expandable one lets you defer the capacity decision — which is the axis buyers most often discover they cared about a year on.

Lifespan

A cycle is one full discharge and recharge, and the rating is roughly how many you get before capacity falls to about 80% of new. On a home system cycled daily it converts almost directly into years, which is why a rating that looks like a modest percentage difference on paper can be most of a second decade in practice.

SOLIX E10

4,000

3,500

Read this one carefully, because the line figure sells BLUETTI short. It’s a median across a range whose halves disagree: EP800 sits near the number shown, EP900 is rated for far more cycles than anything Anker sells. So Anker’s lead here is real against one half of EP and reversed against the other. Nothing on this page makes the case better for settling "which EP" first.

Balance sheet

What each line is good at, and what it isn't

Anker SOLIX E10

Strengths

Stores meaningfully more energy per pound, so a given stack takes less wall and less structure
Keeps expanding after the EP range has reached its ceiling
One specification across every configuration — switchover, cycle life and warranty do not change as you scale
Sealed, outdoor-rated enclosure with a wide operating temperature range
Circuit-level load management, so the system decides what stays on rather than the whole panel dropping

Limits

Fewer watts of inverter per watt-hour stored — a long runtime rather than a heavy hitter
Takes less solar per unit stored, so refilling a large stack takes longer
Shorter stated warranty than BLUETTI’s premium tier
A newer line, with a correspondingly shorter field record and fewer installers who have handled one

BLUETTI EP

Strengths

More inverter behind every watt-hour — comfortably the heavier hitter at equal storage
Accepts more solar per unit stored, which is what shortens a multi-day outage
Its EP900 tier switches over faster than anything in the Anker line and is rated for far more cycles
A long market history, which means installers who have seen one before
Two price tiers, so the entry point into whole-home backup is lower

Limits

The line is two products under one name, and the specifications you will be quoted depend on which
Its value tier gives up switchover speed, cycle life and warranty — none of which is obvious from the name
Less energy per pound, so an equivalent stack is bulkier and heavier to mount
Tops out below where the Anker line keeps going

How to read this

A limit isn't a fault — it's a constraint on what a line is built to do. Every line here has them, including whichever one suits you. The useful question is which set of limits you'll never notice.

Our take

What we would actually do

If you’re buying today and you’d rather not think about it again, buy the Anker. Not because it wins on the numbers — it doesn’t, and the section above says so — but because it’s one product. Same switchover, same cycle rating, same warranty, smallest configuration to largest. You can’t get it wrong by accident.

The BLUETTI is the more interesting machine, and in its premium tier the better one. More inverter and more solar behind every watt-hour, a faster switchover than anything Anker sells, rated to last considerably longer. If you know you’re buying that tier, it’s the stronger system and we won’t argue.

What gives us pause is the buyer who doesn’t know. The two EP tiers share a name, a battery module and a silhouette. Nothing on the outside tells you which one you’re looking at — and the gap between them is wider than the gap between either one and the Anker. That’s a real chance of paying for a reputation your unit doesn’t have, and BLUETTI has chosen not to close it.

One more thing, because neither company will say it: at this money, installation isn’t a footnote. Both hardwire to your panel. Both want a licensed electrician. BLUETTI has been at this long enough that finding someone who’s handled one is genuinely easier. On a five-figure system, an installer who’s seen it before is worth more than a spec-sheet advantage.

Buy the Anker if you want one decision. Buy the BLUETTI if you’re willing to make two — and the second one matters more than the first.

The opinion is ours; the figures above it are measured. See how we test and score.

The contested band

Where the lines actually collide

Models within 15% of each other on capacity — and whether they're truly interchangeable.

Genuine matchCompare

SOLIX E102*SOLIX E10 + 6*B6000 + Power Dock

EP2*EP800 + 8*B500

Capacity36,86439,680Wh

Output15,20015,200W

Genuine matchCompare

SOLIX E102*SOLIX E10 + 6*B6000 + Power Dock

EP2*EP900 + 8*B500

Capacity36,86439,680Wh

Output15,20018,000W

Genuine matchCompare

SOLIX E10SOLIX E10 + 3*B6000

EPEP800 + 4*B500

Capacity18,43219,840Wh

Output7,6807,600W

Genuine matchCompare

SOLIX E10SOLIX E10 + 3*B6000

EPEP900 + 4*B500

Capacity18,43219,840Wh

Output7,6809,000W

Same energy, different jobCompare

SOLIX E10SOLIX E10 + 5*B6000

EP2*EP900 + 6*B500

Capacity30,72029,760Wh

Output7,68018,000W

Same energy, different jobCompare

SOLIX E10SOLIX E10 + 5*B6000

EP2*EP800 + 6*B500

Capacity30,72029,760Wh

Output7,68015,200W

The verdict

So which one should you buy?

Nobody actually buys a spec sheet. Find the row that sounds most like your life — that's the line we'd point you at, and why.

Whole-home backup you expect to grow into

It keeps accepting modules after the EP range has topped out, and the specification does not change as you scale.

SOLIX E10Check SOLIX E10 prices

Riding out multi-day outages on solar

Refill rate decides how long you can go, and BLUETTI takes more solar per watt-hour stored — on both halves of its line.

EPCheck EP prices

A house with heavy simultaneous loads

More inverter behind each watt-hour is exactly what starting several demanding appliances at once requires.

EPCheck EP prices

Mounting in a garage or utility space that is already tight

Higher energy density means the same stored energy in less wall, and less load on the structure holding it.

SOLIX E10Check SOLIX E10 prices

Protecting sensitive equipment through the switchover

The EP900 tier is the fastest switchover in this comparison — but buy that tier deliberately, because the other one is not.

EPCheck EP prices

The cheapest credible way into whole-home backup

The EP800 tier is the lower entry point. Go in knowing what it gives up on cycles and warranty.

EPCheck EP prices

Another way in

Or start from the job instead

If you already know what you need it to do, these rank models for that job across every brand we track — not just these two lines.

Best power stations for outages Best solar generators Best whole-home backup stations Best power stations for RV & van life

The full lineups

Every model, if you want to see the whole range

SOLIX E10 · 9 models

Model	Wh	W	lb	Exp.
SOLIX E10	6,144	7,680	190.6	Yes
SOLIX E10 + 2*B6000	12,288	7,680	320.6	Yes
SOLIX E10 + 3*B6000	18,432	7,680	450.6	Yes
SOLIX E10 + 4*B6000	24,576	7,680	580.6	Yes
2SOLIX E10 + 4B6000 + Power Dock	24,576	15,200	641.2	Yes
SOLIX E10 + 5*B6000	30,720	7,680	710.6	—
2SOLIX E10 + 6B6000 + Power Dock	36,864	15,200	901.2	Yes
2SOLIX E10 + 8B6000 + Power Dock	49,152	15,200	1,161.2	Yes
2SOLIX E10 + 10B6000 + Power Dock	61,440	15,200	1,421.2	—

EP · 14 models

Model	Wh	W	lb	Exp.
EP500Proout of stock	5,120	3,000	187.0	—
EP500out of stock	5,120	2,000	167.0	—
EP900 + 2*B500out of stock	9,920	7,600	343.0	Yes
EP800 + 2*B500out of stock	9,920	7,600	360.6	Yes
EP800 + 3*B500	14,880	7,600	483.6	Yes
EP900 + 3*B500out of stock	14,880	9,000	466.0	Yes
EP800 + 4*B500	19,840	7,600	606.6	—
2EP800 + 4B500	19,840	15,200	721.2	Yes
2EP900 + 4B500	19,840	15,200	686.0	Yes
EP900 + 4*B500out of stock	19,840	9,000	589.0	Yes
2EP900 + 6B500	29,760	18,000	932.0	Yes
2EP800 + 6B500out of stock	29,760	15,200	976.8	Yes
2EP800 + 8B500	39,680	15,200	1,213.2	—
2EP900 + 8B500	39,680	18,000	1,178.0	—

Common questions

Anker SOLIX E10 vs BLUETTI EP series FAQs

What is the difference between the Anker SOLIX E10 and BLUETTI EP series?

Anker SOLIX E10 is a single system design — one power module, identical stacking batteries, and a second module when one is not enough — with the same switchover speed, cycle rating and warranty at every size. BLUETTI EP is a family spanning two tiers that share a name: a value tier and a premium tier that differ sharply on switchover speed, rated cycles and warranty. Anker stores more energy per pound and scales higher; BLUETTI puts more inverter and more solar behind each watt-hour it holds.

Which is better, Anker SOLIX E10 or BLUETTI EP?

Neither wins outright, and the honest answer depends on which BLUETTI you mean. Anker leads on energy density and on how far the system scales, and it is consistent across every configuration. BLUETTI leads on inverter capacity and solar intake per watt-hour, and its premium tier beats Anker on switchover speed and rated cycle life. Decide whether your priority is running longer or running heavier — then, if the answer points at BLUETTI, settle which tier before comparing anything.

Are all BLUETTI EP systems the same?

No, and this is the most important thing to know about the line. The EP range covers two tiers under one name. The premium tier switches over roughly twice as fast, is rated for substantially more charge cycles, and carries a stated warranty. The value tier gives up all three in exchange for a lower entry price. Both hardwire to the panel and both stack, so the difference is not visible in the shape of the system — only in the specification sheet.

Which system scales to a larger battery bank?

Anker. Its configurations keep accepting battery modules past the point where the EP range reaches its published ceiling, and a larger share of its configurations still have expansion headroom left. If you are sizing for a house you expect to add load to — a heat pump, an EV charger, an extension — that headroom is the axis to buy on.

Do these systems need professional installation?

Yes. Both hardwire into the electrical panel rather than plugging into an outlet, which is what makes whole-home backup possible and what puts both firmly in licensed-electrician territory. Budget for installation as part of the system rather than an extra, and confirm what your installer has actually worked with — BLUETTI has been in this market considerably longer, so field familiarity is more common.

Which one recharges faster from solar?

BLUETTI, per watt-hour of storage, and it is one of the few EP figures that holds across both tiers of the line. That matters most in a long outage: a larger battery that refills slowly is a fixed budget, while a smaller one with more solar behind it can keep going as long as the weather cooperates.

Figures are generated from our catalog of 136 power stations and refresh with it — line-level values are medians across every model in the line. See how we test and score.