Updated September 30, 2026 · HabitatCue Editorial Team
Deye vs Otovo
Deye
Otovo
Higher score in this comparison
Where Deye and Otovo differ
| Compare | DeyeReviewVisitVisit | OtovoReviewVisitVisit |
|---|---|---|
| Price from | €600 | PLN 375 |
| Largest battery capacity (Wh) | 10,000 | 21,000Higher |
| Warranty | 10 yearsHigher | 2 years |
| Markets | AT, BE, BG, HR, CY, CZ, DK, EE, FI, FR, DE, GR, HU, IE, IT, LV, LT, LU, NL, PL, PT, RO, SK, SI, ES, SE, AU, NZ | AT, BE, FR, DE, IT, NL, NO, PL, PT, ES, SE, CH, GB, US |
| Highest continuous output (W) | 1,100 | Not confirmed |
| Highest solar input (W) | 2,200 | Not confirmed |
Same on both: Cycle life (cycles) (6,000), UPS mode (Yes).
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Key differences
- Otovo scores higher overall: 9.3 vs 8.9.
- Largest battery capacity (Wh) is higher at Otovo: 21,000 vs 10,000.
- Warranty is higher at Deye: 10 years vs 2 years.
- Support channels: only Deye offers Chat.
- Support channels: only Otovo offers Phone, Help centre.
- Founded is lower at Deye: 2000 vs 2016.
- Deye is available in 14 more countries.
- Products: only Deye offers Balcony solar.
- Products: only Otovo offers Solar panel.
- Markets: only Deye offers BG, HR, CY.
Our verdict on each
Deye
Deye suits buyers who want balcony solar and a home battery from the same maker, and its 10 year warranty outlasts the group median of 5 years. The trade-off sits at the output end, where 1,100 W of peak power keeps it aimed at small flats rather than whole-house loads.
Otovo
Otovo suits households that want solar panels and a home battery ordered from one supplier, and it stores a lot in a single unit. Capacity reaches 21,000 Wh with 6,000 cycle life, which makes it a practical daily pick, while the 2 year warranty is the trade-off to weigh.
Score breakdown
| Area | Deye | Otovo |
|---|---|---|
| Cost | 8.6Entry price of €600 sits above the ranking median of €262.21, matching a rank of 19. | 9.9HigherEntry price of PLN 375 ranks 2 of 27 brands compared, so cost is this brand's strongest suit. |
| Offer | 8.9Balcony solar and home battery in one store, 10,000 Wh of storage, 1,100 W of output, solar input of 2,200 W and UPS mode. | 9.0HigherProduct types cover solar panel and home battery and storage reaches 21,000 Wh with 6,000 cycle life, giving a broad system in one place. |
| Trust | 9.8HigherA named legal entity in CN, founded in 2000, with support on email and chat. | 8.8Warranty of 2 years ranks 17 of 19 brands compared, which holds trust back against 8.8. |
How the counts compare
| Fact | Deye | Otovo |
|---|---|---|
| Largest battery capacity (Wh) | 10,000 | 21,000 |
| Cycle life (cycles) | 6,000 | 6,000 |
| Warranty | 10 years | 2 years |
Which one suits you
Pick Deye if warranty matter most.
Pick Otovo if largest battery capacity (wh) matter most.
How they place
| Ranking | Deye | Otovo |
|---|---|---|
| Home batteries and balcony solar | 13 of 57 | 7 of 57 |
Every fact side by side
| Fact | Deye | Otovo |
|---|---|---|
| Products | Balcony solar, Home battery | Solar panel, Home battery |
| Battery chemistry | Lifepo4 | Lifepo4 |
| Legal entity | Ningbo Deye Technology Co., Ltd. | Otovo Sp. z o.o. |
| Headquarters | China | Norway |
| Founded | 2000Lower | 2016 |
| Support channels | Email, Chat | Phone, Email, Help centre |
Where each stands against the rest
| Fact | Deye | Otovo | Median |
|---|---|---|---|
| Largest battery capacity (Wh) | 10,000above the median | 21,000highest quarter | 7,200 |
| Highest continuous output (W) | 1,100lowest quarter | Not confirmed | 4,000 |
| Cycle life (cycles) | 6,000at the median | 6,000at the median | 6,000 |
| Highest solar input (W) | 2,200below the median | Not confirmed | 3,000 |
| Warranty | 10 yearsabove the median | 2 yearslowest quarter | 5 years |
Median across 33 listed brands.
Pros and cons
Deye
Pros
- Warranty of 10 years, which places Deye at 1 of 19 brands and above the group median of 5 years.
- Balcony solar and home battery from the same maker, where WattCycle LiFePO4 covers home battery on its own.
- UPS mode on the balcony unit, so a small load can run through an outage instead of only storing daytime solar.
Cons
- Output of 1,100 W puts Deye at 24 of 24 brands, so it will not carry heavy loads.
- Entry price of €600 is above the ranking median of €262.21 and ranks 19 of 27 brands on price.
- Support runs on email and chat, and phone is the route 66.7% of the brands in this group keep open.
Otovo
Pros
- Batteries use lifepo4 chemistry with a stated cycle life of 6,000 cycles, which suits charging every day rather than now and then.
- Storage reaches 21,000 Wh in a home battery, and the same range covers solar panel and home battery so panels and storage can be ordered together.
- UPS mode is offered, so essential loads can run through an outage on battery power.
Cons
- Warranty of 2 years ranks 17 of 19 brands compared, so cover after purchase is where it gives ground.
- Product types run to solar panel and home battery only, so anyone after balcony solar or a portable power station is better served by ALLPOWERS, whose range is power station, solar generator and home battery.
- The entry price of PLN 375 is quoted in Polish zloty, so buyers in other markets have to convert before comparing with anything priced in their own currency.
Who each suits
Deye
Who it suits
- Buyers who want balcony solar and a home battery from the same maker, rather than the portable power station route power station and home battery opens up at DATOUBOSS.
- Households that plan around service life rather than peak power, given 10 years of cover against a group median of 5 years, with support handled on email and chat.
- Buyers who want a balcony system under one long warranty and are not shopping for the panel-inclusive range power station, solar generator and home battery covers at ALLPOWERS.
Who should look elsewhere
- Buyers who only want a home battery with no balcony kit, since WattCycle LiFePO4 lists home battery on its own and suits a pure storage brief.
- Shoppers wanting a portable power station in the same basket, since DATOUBOSS lists power station and home battery and Deye's balcony solar and home battery leaves out a power station.
Otovo
Who it suits
- Households in the markets listed for Otovo, AT, BE and FR, who want solar panels and a home battery ordered from one supplier.
- Buyers who need backup during outages, since UPS mode is offered and the batteries reach 21,000 Wh.
- Households comfortable with a 2 year warranty who put storage size ahead of the length of cover.
Who should look elsewhere
- Buyers shopping only for a home battery with no panels, who will find WattCycle and its home battery a tighter fit.
- Buyers who also want a power station, who should compare DATOUBOSS and its power station and home battery.
- Buyers after balcony solar alongside storage, who should look at ALLPOWERS and its power station, solar generator and home battery.
Country by country
| Country | Deye | Otovo |
|---|---|---|
| Australia | Yes | No |
| Bulgaria | Yes | No |
| Croatia | Yes | No |
| Cyprus | Yes | No |
| Czechia | Yes | No |
| Denmark | Yes | No |
| Estonia | Yes | No |
| Finland | Yes | No |
8 of 32 countries where either is available.
Questions about each
Deye
What does a Deye balcony system cost?+
Deye's energy storage range starts at €600. That figure covers the hardware, so the 10 year warranty is what sets the value horizon rather than any contract term. Against the field, the entry price ranks 19 of 27 brands and sits above the ranking median of €262.21, so expect to pay more than the typical starting figure here.
How much storage can a Deye system hold?+
The largest unit in the range holds 10,000 Wh of energy. That places Deye at 12 of 28 brands on storage size, comfortably above the group median of 7,994, though a long way short of the biggest cabinets at 94,500.
Otovo
What does a system cost to start with Otovo?+
The entry price is PLN 375, which places Otovo close to the front of the brands compared on cost. Think of it as the starting figure for a system rather than a monthly amount, and check what adding a home battery does to the total before you settle on a plan.
How much energy can the battery store?+
Storage tops out at 21,000 Wh, which places Otovo mid-table among the brands compared on this measure rather than at the very top. Buyers chasing the largest single unit on the market have further to look, while most solar homes will find this scale workable for evening and overnight use.