Best Nimh Vacuum Replacement Batteries in 2026

4500mAh capacity replacement Roomba battery. More capacity than the original Roomba 3000mAh capacity. This will give you a longer run time on the vacuum before needing a charge.

Replace and upgrade - A perfect iRobot replacement battery, easy to replace and install directly. Also compatible with some Discovery Vacuum, Dirt Dog Vacuum, Create Vacuum models.

Easy to charge and connect APS battery compatible with Roomba FloorVac models.

Longer lasting battery - As an iRobot replacement battery, it’s been built to have up to a 1000 recharge cycle life span. With improved battery longevity, it will maintain its performance consistently ensuring that your home stays routinely clean.

Upgrade and replace - A cleaning system is only as strong as the battery allows it to be. Get the powerful 14.4V Roomba Battery as a direct replacement to the in-house standard unit. With a 3850mAh rated capacity it stores more power meaning longer run times depending on usage. Compatible with these select iRobot models: 500, 510, 530, 532, 535, 536, 540, 550, 551, 562, 570, 572, 580, 590, 610, 760, 770, 780, 790, 880, 960 and 980.

Improved design - The Tenergy NiMH rechargeable battery for Roomba features low self-discharge in which the battery will degrade at a much slower rate over time. This makes it an ideal battery to upgrade to as it’s designed to go the distance. Also it has no memory effect meaning it will retain its energy capacity after each charge. With a built in overcurrent and overheating protections the circuitry stands protected.

High quality sub C - High capacity replacement 3000mAh NiMH sub c battery, replaces and performs better than NiCd sub c batteries and can be recharged up to 600 cycles.

Large capacity - 3000 mAh capacity provides 80% more runtime than NiCD Sub C batteries.

High drain applications - Up to 30 Amp of high current drain, ideal for heavy duty battery packs in applications such as remote control toys (RC toys), airsoft guns, power tools, vacuum cleaners, cordless drill, emergency lights, portable survival devices, and more.

Hight quality sub C - High capacity replacement 3800mAh NiMH sub c battery, replaces and performs better than NiCd sub c batteries and can be recharged up to 600 times.

Large capacity - 3800 mAh capacity provides 80% more runtime than NiCD Sub C batteries.

High drain applications - Up to 30 Amp of high current drain, ideal for heavy duty battery packs in applications such as remote control toys (RC toys), airsoft guns, power tools, vacuum cleaners, cordless drill, emergency lights, portable survival devices, and more.

HIGH QUALITY SUB C - High capacity replacement NiMH sub c rechargeable battery, replaces and performs better than NiCd sub c batteries and can be recharged up to 600 cycles.

LARGE CAPACITY - Tenergy's 5,000 mAh capacity provides the highest capacity available on the market and offers 140% more runtime than NiCD Sub C batteries.

HIGH DRAIN APPLICATIONS - Up to 50 Amp of high current drain, ideal for heavy duty battery packs in applications such as remote control toys (RC toys), airsoft guns, power tools, vacuum cleaners, cordless drill, emergency lights, portable survival devices, and more.

Hight quality sub C - High capacity replacement 3800mAh NiMH sub c battery, replaces and performs better than NiCd sub c batteries and can be recharged up to 600 times.

Large capacity - 3800 mAh capacity provides 80% more runtime than NiCD Sub C batteries.

High drain applications - Up to 30 Amp of high current drain, ideal for heavy duty battery packs in applications such as remote control toys (RC toys), airsoft guns, power tools, vacuum cleaners, cordless drill, emergency lights, portable survival devices, and more.

High quality sub C - High capacity replacement NiMH sub c rechargeable battery, replaces and performs better than NiCd sub c batteries and can be recharged up to 600 cycles.

Large capacity - Tenergy's 5,000 mAh capacity provides the highest capacity available on the market and offers 140% more runtime than NiCD Sub C batteries.

High drain applications - Up to 50 Amp of high current drain, ideal for heavy duty battery packs in applications such as remote control toys (RC toys), airsoft guns, power tools, vacuum cleaners, cordless drill, emergency lights, portable survival devices, and more.