Power station expansion batteries: what fits what (2026)
An expansion battery adds watt-hours to a power station you already own: plug it in and the station runs longer. The catch is that every one is made for specific models, often only one, and some popular stations can't take one at all. This page lists the expansion batteries we found for current US power stations on November 9, 2026, with the exact models each fits by its maker's own pages, plus capacity, weight and battery cycles. We haven't tested them.
By Tom Calder · Updated November 9, 2026 · 11 products, 9 of 11 price-tracked
Our picks by size
Photo: AmazonDJI Expansion Battery 2000
Adding 2kWh to a DJI Power 1000 V2 or 2000
as of Nov 9, 2026, 11:40 AM ET · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Photo: AmazonEcoFlow EB300
Doubling a RIVER 3 Plus to 572Wh
as of Nov 9, 2026, 11:40 AM ET · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Photo: BLUETTIBLUETTI B300K
Expanding a BLUETTI AC200L, AC300 or Apex 300
All 11 compared
| Battery | Capacity | Fits | Weight | Cycles | Battery | Price |
|---|---|---|---|---|---|---|
2,048 Wh · DJI Power 1000, 1000 V2, 2000 · 36.4 lb · 4,000 · LiFePO4 Adding 2kWh to a DJI Power 1000 V2 or 2000 | 2,048 Wh | DJI Power 1000, 1000 V2, 2000 | 36.4 lb | 4,000 | LiFePO4 | $699 at Amazon as of Nov 9, 2026, 11:40 AM ET · DetailsProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.In stockCheck price → |
Our verdictOur verdictResearched 2,048Wh per battery; DJI says the Power 1000 V2 takes up to five and the Power 2000 up to ten. Best for Adding 2kWh to a DJI Power 1000 V2 or 2000 Good
Worth knowing
Who shouldn't buy it: Don't buy it if you don't own a DJI Power station. | ||||||
2,764.8 Wh · BLUETTI AC200L, AC300, AC500, AC200MAX, Apex 300 · 65.04 lb · 6,000 · LiFePO4 Expanding a BLUETTI AC200L, AC300 or Apex 300 | 2,764.8 Wh | BLUETTI AC200L, AC300, AC500, AC200MAX, Apex 300 | 65.04 lb | 6,000 | LiFePO4 | $1,099 at BLUETTI Checked Nov 9In stockCheck price → |
Our verdictOur verdictResearched 2,764.8Wh for BLUETTI's AC200L, AC300, AC500, AC200MAX and Apex 300, by BLUETTI's listings; BLUETTI's FAQ says it can't be charged from solar panels directly, only through the station it's connected to. Best for Expanding a BLUETTI AC200L, AC300 or Apex 300 Good
Worth knowing
Who shouldn't buy it: Don't buy it if you own an Elite model: the B300K doesn't fit any of them. | ||||||
2,048 Wh · Anker SOLIX C2000 Gen 2 · 33.7 lb · 4,000 · LiFePO4 Doubling an Anker SOLIX C2000 Gen 2 | 2,048 Wh | Anker SOLIX C2000 Gen 2 | 33.7 lb | 4,000 | LiFePO4 | |
Our verdictOur verdictResearched 2,048Wh made only for the C2000 Gen 2, taking it to 4,096Wh, by Anker's page. Best for Doubling an Anker SOLIX C2000 Gen 2 Good
Worth knowing
Who shouldn't buy it: Don't buy it if you own any other Anker station. | ||||||
2,048 Wh · Jackery HomePower 1000 Plus v2, 2000 Plus v2 · 32.63 lb · 6,000 · LiFePO4 Expanding a Jackery HomePower 1000 Plus v2 or 2000 Plus v2 | 2,048 Wh | Jackery HomePower 1000 Plus v2, 2000 Plus v2 | 32.63 lb | 6,000 | LiFePO4 | $999 at Jackery Checked Nov 9In stockCheck price → |
Our verdictOur verdictResearched 2,048Wh per pack, up to five per station (11kWh on the 1000 Plus v2, 12kWh on the 2000 Plus v2), by Jackery's figures. It has no outlets of its own and charges only through the station. Best for Expanding a Jackery HomePower 1000 Plus v2 or 2000 Plus v2 Good
Worth knowing
Who shouldn't buy it: Don't buy it if you own an Explorer model: no current Explorer takes it. | ||||||
2,048 Wh · EcoFlow DELTA 3 Max Plus, DELTA 3 Ultra Plus · 35.3 lb · LiFePO4 Adding 2kWh to a DELTA 3 Max Plus | 2,048 Wh | EcoFlow DELTA 3 Max Plus, DELTA 3 Ultra Plus | 35.3 lb | — | LiFePO4 | $859 at EcoFlow Checked Nov 9In stockCheck price → |
Our verdictOur verdictResearched 2,048Wh for the DELTA 3 Max Plus and DELTA 3 Ultra Plus; a second one on a Max Plus needs EcoFlow's expansion adapter, which EcoFlow says will be released soon. EcoFlow says DELTA 3 and DELTA 3 Plus support needs a later firmware release. Best for Adding 2kWh to a DELTA 3 Max Plus Good
Worth knowing
Who shouldn't buy it: Don't buy it if you own a DELTA 3 or DELTA 3 Plus and can't wait for the firmware: the DELTA 3 Series battery fits now. | ||||||
3,072 Wh · Anker SOLIX F3000 · 55.12 lb · 4,000 · LiFePO4 Growing an Anker SOLIX F3000 | 3,072 Wh | Anker SOLIX F3000 | 55.12 lb | 4,000 | LiFePO4 | |
Our verdictOur verdictResearched 3,072Wh per battery for the F3000, which Anker says expands to 24kWh. Its page title also names the C2000 Gen 2, but the C2000 Gen 2's own page lists only the BP2000 (Gen 2), so check with Anker first. Best for Growing an Anker SOLIX F3000 Good
Worth knowing
Who shouldn't buy it: Don't buy it if you own a C2000 Gen 2: buy the BP2000 (Gen 2), which Anker lists for it. | ||||||
 5,120 Wh · BLUETTI AC200L, AC300, AC500, AC200MAX, Apex 300 · 99.21 lb · 4,000 · LiFePO4 The most capacity per box for a BLUETTI AC200L or Apex 300 | 5,120 Wh | BLUETTI AC200L, AC300, AC500, AC200MAX, Apex 300 | 99.21 lb | 4,000 | LiFePO4 | $1,799 at BLUETTI Checked Nov 9In stockCheck price → |
Our verdictOur verdictResearched 5,120Wh in one 99.21 lb pack for the AC200L, AC300, AC500, AC200MAX and Apex 300, by BLUETTI's listings: home-backup scale. Best for The most capacity per box for a BLUETTI AC200L or Apex 300 Good
Worth knowing
Who shouldn't buy it: Don't buy it if you own an Elite model: the B500K doesn't fit any of them, and if you'll ever move it, two B300Ks split the weight. | ||||||
 2,048 Wh · OUPES Mega 1, 2, 3 · 41.8 lb · 3,500 · LiFePO4 Expanding an OUPES Mega 1, 2 or 3 | 2,048 Wh | OUPES Mega 1, 2, 3 | 41.8 lb | 3,500 | LiFePO4 | $799 at Amazon as of Nov 9, 2026, 11:40 AM ET · DetailsProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.In stockCheck price → |
Our verdictOur verdictResearched 2,048Wh with its own solar input, for OUPES's Mega stations; two take a Mega 1 to 5,120Wh. Best for Expanding an OUPES Mega 1, 2 or 3 Good
Worth knowing
Who shouldn't buy it: Don't buy it if your station isn't an OUPES Mega. | ||||||
286 Wh · EcoFlow RIVER 3 Plus · 7.7 lb · 3,000 · LiFePO4 Doubling a RIVER 3 Plus to 572Wh | 286 Wh | EcoFlow RIVER 3 Plus | 7.7 lb | 3,000 | LiFePO4 | $149 at Amazon as of Nov 9, 2026, 11:40 AM ET · DetailsProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.In stockCheck price → |
Our verdictOur verdictResearched 286Wh that clips on to the RIVER 3 Plus to make 572Wh, by EcoFlow's figures. Best for Doubling a RIVER 3 Plus to 572Wh Good
Worth knowing
Who shouldn't buy it: Don't buy it if you have the plain RIVER 3, which can't take it. | ||||||
1,024 Wh · EcoFlow DELTA 3, DELTA 3 Plus, DELTA 2 (not DELTA 3 Classic) · LiFePO4 Adding 1kWh to a DELTA 3 or DELTA 3 Plus | 1,024 Wh | EcoFlow DELTA 3, DELTA 3 Plus, DELTA 2 (not DELTA 3 Classic) | — | — | LiFePO4 | $389 at EcoFlow Checked Nov 9In stockCheck price → |
Our verdictOur verdictResearched 1,024Wh for the DELTA 3, DELTA 3 Plus and DELTA 2; the DELTA 3 Classic can't take it. EcoFlow's page gives two cycle figures, so we list neither. Best for Adding 1kWh to a DELTA 3 or DELTA 3 Plus Good
Worth knowing
Who shouldn't buy it: Don't buy it if you own a DELTA 3 Classic or DELTA 3 Max. | ||||||
 1,548 Wh · VTOMAN FlashSpeed 600, 1000, 1500 · 27.9 lb · 3,000 · LiFePO4 Expanding a VTOMAN FlashSpeed 600, 1000 or 1500 | 1,548 Wh | VTOMAN FlashSpeed 600, 1000, 1500 | 27.9 lb | 3,000 | LiFePO4 | $379.99 at Amazon as of Nov 9, 2026, 11:40 AM ET · DetailsProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.In stockCheck price → |
Our verdictOur verdictResearched 1,548Wh for VTOMAN's FlashSpeed 600, 1000 and 1500, by VTOMAN's listing. Best for Expanding a VTOMAN FlashSpeed 600, 1000 or 1500 Good
Worth knowing
Who shouldn't buy it: Don't buy it if you own a different VTOMAN line, like the Jump 1500X. | ||||||
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Before you buy
Match the exact model.
EcoFlow's DELTA 3 Series battery fits the DELTA 3 and DELTA 3 Plus (and the DELTA 2, by EcoFlow's Amazon listing) but not the DELTA 3 Classic; Anker's BP2000 (Gen 2) fits only the C2000 Gen 2; DJI's Expansion Battery 2000 fits the Power 1000, 1000 V2 and 2000. Each card here names what the maker says it fits.
Know the limit.
Makers cap how many batteries one station takes: DJI says up to five on the Power 1000 V2 and ten on the Power 2000; EcoFlow says a DELTA 3 Max Plus takes one extra battery now and two once its expansion adapter is released; OUPES says two B2s take a Mega 1 to 5,120Wh.
Output doesn't grow.
A battery adds watt-hours, not watts. If your station can't start your fridge or run your microwave now, a battery won't change that.
Weight.
Big packs are heavy: the BLUETTI B500K weighs 99.21 lb and the B300K 65.04 lb by BLUETTI's figures. Some, like the OUPES B2, have their own solar input; check the maker's FAQ, since BLUETTI says its B300K can't be charged from solar panels directly.
Safety and storage.
Store lithium batteries where the maker's manual says, away from heat, and keep them topped up every few months. Our lithium battery fire safety guide covers the official advice.
We verify every product's specifications against at least two independent sources, re-check its US price and stock on a schedule where we can track it automatically, and cross-check safety-relevant claims against official guidance. Every review is labeled Researched or Used and reviewed by us: where we've bought a product, or been sent it free, and used it ourselves, its review says which; where we haven't, our verdict is a considered spec-and-evidence comparison, not a hands-on test. When two products are close, commission can decide which one we pick. A clearly better product always wins. Read our full methodology →
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Common questions
Can I add an extra battery to any power station?
No. Only models with an expansion port can take one, and only the maker's batteries listed for that model. Anker's C1000 Gen 2, EcoFlow's DELTA 3 Classic and most of BLUETTI's Elite range, for example, can't take one by their makers' pages.
Is an expansion battery cheaper than a bigger power station?
Sometimes, sometimes not: compare the station plus battery with a single larger station on the day. A battery mainly makes sense if you already own an expandable station or want to spread the cost.
Does an extra battery increase output?
No. It adds stored energy (Wh), so the station runs longer; the maximum it can power at once (W) stays the station's own figure.
Which EcoFlow extra battery do I need?
For a DELTA 3 or DELTA 3 Plus, the DELTA 3 Series Smart Extra Battery (1,024Wh); for a DELTA 3 Max Plus or DELTA 3 Ultra Plus, the DELTA 3 Max Plus Smart Extra Battery (2,048Wh); for a RIVER 3 Plus, the EB300. The DELTA 3 Classic and DELTA 3 Max take none.
Which BLUETTI expansion battery fits my station?
The B300K and B500K fit the AC200L, AC300, AC500, AC200MAX and Apex 300 by BLUETTI's listings. Neither fits BLUETTI's Elite models.