TOMTOP JMS N79S Replacement Battery for Robot Vacuum: 14.8V 2800mAh capacity
Available Options
If your N79S robot vacuum's been slacking off lately, it's probably begging for this replacement battery—a perfect match that'll get it back to its hardworking self. Packing a 14.8V 2800mAh punch, this little powerhouse keeps the cleaning marathon going longer than you'd expect. And guess what? Slapping it in is a breeze, so you can skip the tech support drama.
Why you'll love it:
- Fits the N79S like a glove (because one-size-fits-all is a myth)
- Lasts so long, your vacuum might outlive your interest in cleaning
- Installation? Easier than assembling flat-pack furniture (and way less frustrating)
- Compatible with N79S model
- High performance
- Easy installation
- 14.8V 2800mAh capacity
General specs
- Brand: TOMTOP JMS
- Model: N79S
- Seller: Joom
- Voltage: 14.8V
- Capacity: 2800mAh
- Compatibility: N79S robot vacuum
- First listed by seller: 6/21/25
If you are interested in more details, you can find full information on the seller's page.
Shipping options
United States
Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
TOMTOP JMS N79S 14.8V 2800mAh capacity
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Replacement Battery for Robot Vacuum 14.4V lithium-ion
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Replacement Battery 14.4V high capacity
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Replacement Lithium Battery for Robot Vacuum Black 14.4V 2800mAh capacity
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Replacement Battery for Robot Vacuum High capacity 5200 mAh
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| Brand | TOMTOP JMS | Battery products | Vestidos | PALO | Battery products | Vestidos |
| Model | N79S | |||||
| Color |
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| Rating |
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| Price | $35.30 | $43.01 | $44.36 | $42.45 | $38.74 | $47.74 |
| Seller | Joom | Joom | Joom | Joom | Joom | Joom |
| Update | August 29, 2025 | August 8, 2025 | August 30, 2025 | August 30, 2025 | August 8, 2025 | August 29, 2025 |
| Voltage | 14.8V | 14.4V | 14.4V | 14.4V | 14.8V | 14.4V |
| Capacity | 2800mAh | 2600mAh | 5200mAh | 2800mAh | 3500mAh | 5200 mAh |
| Compatibility | N79S robot vacuum | Xiaomi Mop Pro STYTJO2YM, Yummy MVVC01-G, Roborocks vacuum | Ilife V7s, V7s Pro, A4, A4s, A6, Ecovacs models | D9, F9, L10Pro | ||
| Battery Type | Lithium-ion | Polymer Lithium | Lithium-ion | |||
Replacement Battery for Robot Vacuum
Patrick C.
San Jose, CA
July 3, 2025
I was super skeptical when I bought this replacement battery for my robot vacuum because I've had bad experiences with off-brand parts before I expected it to bring my vacuum back to life like new but the reality is it's just okay it works and gets the job done but the runtime is shorter than I wanted it doesn't hold a charge as well over time which is disappointing for a pragmatist like me who values durability I compared it to other options in the same price range and while this one was easy to install others might last longer overall it's functional but not amazing I'll keep using it for now but I might look for something better next time 😕
- Pros: I can say for sure this battery fits my vacuum super well just like they said and it was most likely the easiest thing I've ever installed no tools needed just popped it in and it started working right away which is a relief for an old guy like me
- Cons: But it doesn't last as long as I hoped my vacuum runs out of juice faster than before and for the price I paid I expected better performance it feels a bit weak compared to what I remember from the original one