8 Best Replacement Roomba Batteries to Buy in 2025

The POWTREE 6400mAh pack lands with a punch, offering a true Li‑ion upgrade over older Ni‑MH modules for legacy Roomba R3 models. With a 14.4V, 6400mAh spec, it delivers extended cycles and low self‑discharge, solving the common ‘dies mid-clean’ issue on 500–900 Series robots. It’s ISO9001/CE/RoHS certified and broadly compatible, so you can rejuvenate everything from a 560 to a 980 without firmware fuss.

In testing on a Roomba 650 and 980, the higher capacity sustained multi‑room runs and resumed sessions without power sag. The no‑memory design tolerated top‑offs well, and the pack handled thicker rugs without triggering early returns to dock. Like most high‑capacity lithium, it benefits from proper dock alignment and can feel heavier on older brush modules, but no overheating or error codes surfaced.

Compared with the FirstPower 5.0Ah Ni‑MH, the POWTREE’s lithium chemistry yields better charge retention and stronger peak output under load. It also outlasts the 3300mAh Vanpir‑class options for 500–900 series, though those are lighter and cheaper. Ideal for users wanting a ‘set‑and‑forget’ upgrade for older Roombas, it balances runtime and reliability; against the Upgraded 3300mAh pack, POWTREE offers more endurance for only a modest trade in weight.

If you want a quick, low‑cost reboot for an aging bot, FirstPower’s 5.0Ah Ni‑MH (14.4V) battery hits the sweet spot. It mirrors OEM dimensions, slides in easily, and includes CE/FCC/PSE/RoHS safeguards. For many 500–900 Series Roombas, it’s the most straightforward ‘back to life’ swap for the best budget friendly pick.

In real‑world runs, we saw roughly 1–1.5 hours on a Roomba 690 and 760—enough for most apartments and single‑floor homes. It handles daily pet hair cycles, though suction ramps or deep‑pile rugs may nudge it to dock sooner than lithium alternatives. Like all Ni‑MH, it benefits from full cycles and periodic maintenance charges if stored.

Compared to the POWTREE 6400mAh Li‑ion, FirstPower offers lower cost and acceptable runtime but can’t match lithium’s shelf stability or high‑load performance. Against the Powerextra 5.0Ah Ni‑MH, performance is similar; pick FirstPower if you want the least expensive, plug‑and‑play solution. It’s best for users with lighter cleaning demands and predictable schedules, trading lithium polish for wallet‑friendly practicality.

This Vanpir‑branded Li‑ion 14.4V, 3300mAh (48Wh) strikes a smart balance for 500–900 Series robots that need reliability without overpaying for capacity. Rated for ≥500 cycles and claiming 80% capacity after 1000 charges, it emphasizes long‑term durability and a 1%/month self‑discharge rate. It’s a strong fit if your Roomba sits idle for stretches but must work predictably when called.

On a Roomba 671 and 890, runs routinely covered multi‑room apartments, with enough reserve for edge passes and spot cleaning. It maintained stable output over area rugs and during Carpet Boost cycles on compatible models. Note the vendor’s caution: avoid fully draining on third‑party docks; keeping ≥10% charge prevents excessive discharge and charging faults.

Versus the POWTREE 6400mAh, this 3300mAh is lighter and more budget‑friendly while still offering the Li‑ion benefits over Ni‑MH. Compared to the Upgraded 3300mAh (B0DR26737R), performance is near‑identical—pick based on warranty or support preference. For users needing dependable balanced performance, this hits the runtime/weight/value trifecta better than most Ni‑MH alternatives.

Powerextra’s 5.0Ah Ni‑MH (14.4V) revives Roomba R3 units with OEM‑like fit and protective circuitry for overcharge, overcurrent, and short‑circuit events. It’s a best value Ni‑MH choice for users who prefer tried‑and‑true chemistry with easy compatibility across 500–900 Series models. The brand backs it with certifications and clear guidance for error‑reset steps.

In testing on a Roomba 650 and 770, the pack delivered consistent ~1.5 hours under light to moderate loads, reliably finishing standard floor plans. It tolerates frequent full cycles, making it adept for daily cleaning routines. As with all Ni‑MH, expect higher self‑discharge if stored and slightly reduced oomph under heavy Carpet Boost compared to Li‑ion.

Stacked against FirstPower 5.0Ah, runtime and behavior are very similar; Powerextra’s edge is brand maturity and robust support materials. Compared to Vanpir 3300mAh Li‑ion, you give up shelf life and peak power but save if you don’t need lithium perks. It’s ideal for routine, whole‑home runs where predictability matters more than maximum endurance.

For modern Roombas, the Vanpir ABL‑F is a purposeful 14.4V, 4460mAh (≈64Wh) Li‑ion built for the i, e, and j Series including i7/i7+, j7/j7+, i3/i4/i6/i8, and e5/e6. It replaces ABL‑D1/D2 with ≥500 cycle durability and UL/CE/FCC/RoHS safety. This pack targets power‑hungry models that use advanced navigation and Carpet Boost, keeping performance consistent across larger homes.

On an i7+ and j7, the higher capacity sustained full‑floor mapping runs with room to spare for spot passes after docking/empty cycles. The output stayed stable on thick rugs and during continuous bin‑empty routines, suggesting well‑managed thermal behavior. We observed no charging anomalies, and fitment matched OEM tolerances.

Versus the iRobot 1800mAh OEM (for older 600/800/960 ranges), this is the obvious pick if you own i/e/j series—more capacity, correct form factor, and better workload handling. Compared to 500–900 series lithium packs like the POWTREE, the ABL‑F simply targets a different generation. If you need a dependable best for i/e/j Series battery, this brings near‑OEM polish with more stamina.

This 14.4V, 3300mAh/48Wh Li‑ion (Model 1800LI) is purpose‑built for the 500–900 Series, covering everything from 510 to 980 with 4376392 compatibility. It includes a helpful activation tip—dock for three minutes after install—and cautions against excessive discharge on third‑party bases. For users wanting a clean, modern lithium swap, it checks all the right boxes.

In testing with a 675 and 965, the pack powered full cleaning cycles with confident suction and consistent current draw, even late in the run. Low self‑discharge kept the bot ready after a week off the dock. We recommend heeding the ≥10% remaining charge guideline to avoid charge lockouts, especially on older docks.

Compared to the Vanpir 3300mAh (B0C4335ZWB), performance feels interchangeable; selection comes down to after‑sales support and availability. Against the POWTREE 6400mAh, you trade marathon endurance for a lighter, more affordable package. It’s the best for 500‑900 Series users who want lithium smoothness without chasing maximum capacity.

This 5.0Ah Ni‑MH option targets long runtime on a budget, bundling extras like side brushes and a cleaning tool. It’s compatible with a wide swath of R3 models (500–900 Series), offering a simple swap for owners who want hours‑class cleaning without switching chemistries. Safety features cover overcharge and thermal protection for dependable daily use.

On a Roomba 690 and 980, we recorded robust runs approaching ~1.5 hours, with steady behavior during routine debris pickup. It’s less efficient off‑dock than lithium due to higher self‑discharge, and can feel heavier in older brush decks. Still, for users running frequent, full‑cycle cleans, Ni‑MH’s tolerance for deep cycling is an advantage.

Against the FirstPower 5.0Ah, performance and intent align; this bundle edges ahead with included accessories. Compared to the Vanpir/Upgraded 3300mAh Li‑ion, you’ll get similar runtime in some homes but weaker shelf life and less high‑load punch. It’s ideal for those prioritizing long runtime on budget with easy maintenance.