★★★★★
Works for me.
BenisJ—January 7, 2026✓ Verified purchase
Fits fine. As easy to install as any other replacement battery. TBD on longevity but battery storage (backup life) seems to be equal to the OEM. Read more
Mighty Max Battery
Mighty Max Battery 12V 3 4AH Compatible Battery for APC ES BE350G BE350T BE350U RBC35
$18.99$131.00
About this item
- ML3-12 SLA is a 12V 3AH Sealed Lead Acid (SLA) rechargeable maintenance free battery - UL Certified
- Dimensions: 5.28 inches x 2.64 inches x 2.64 inches. Terminal: F1. Listing is for the Battery only. No wire harness or mounting accessories included.
- SLA / AGM spill proof battery has a characteristic of high discharge rate, wide operating temperatures and long service life.
- Rechargeable battery that can be mounted in any position, resists shocks and vibration. Long lasting high performance in high and low temperatures.
- Full One Year Warranty
$18.99
Was $131.00Save $112.01
In Stock
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Product details
| Number of Batteries | 1 12V batteries required. (included) |
|---|---|
| Brand | Mighty Max Battery |
| Battery Cell Composition | Lead Acid |
| Battery Capacity | 3 Amp Hours |
| Recommended Uses For Product | Power Tool |
Technical specifications
| product_dimensions | 5.28 x 2.64 x 2.64 inches |
|---|---|
| item_weight | 2.83 pounds |
| item_model_number | ML3-12104 |
| batteries | 1 12V batteries required. (included) |
| best_sellers_rank | #72,624 in Health & Household ( See Top 100 in Health & Household ) #143 in 12V Batteries |
| date_first_available | May 9, 2014 |
| manufacturer | Mighty Max Battery |
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From the brand
Product videos
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Customer reviews
4.5318 ratings
- 5★88%
- 4★13%
- 3★0%
- 2★0%
- 1★0%
Customers say
Customers find the battery works well as a replacement for APC BE350G models, fits perfectly, and is easy to install.
★★★★★
Works great in the UPS
RamJet—February 24, 2026✓ Verified purchase
Dropped right into the UPS and is working as expected. Read more
★★★★★
Price and Fit, perfect.
Roy Rodriguez—January 28, 2026✓ Verified purchase
Fits and works. Is a direct replacement. Read more
★★★★★
I like it very much.
JOHN H. ALSTON—January 31, 2026✓ Verified purchase
It fit my ups perfectly. It cost less than the last time I replaced it. Read more
★★★★☆
"Feet" makes battery taller than original
Bill Broderick—November 28, 2025✓ Verified purchase
If you are purchasing this for an APC BE350, you should be aware that there are 4 small L-shaped feet on the bottom corners of this battery that make it a fraction too tall to fit into the BE350 and close the door. On the BE350, the battery gets inserted so that the bottom of the battery is right against the sliding battery door. There is absolutely no wiggle room with the original APC battery. With the Mighty Max, the feet get caught on the door tabs the when you try to close the door. The feet can be trimmed off with a razor knife and the battery door will close. You should just be prepared to do so. Otherwise, this battery works fine, just like every other Mighty Max UPC replacement battery that I've purchased. Read more
★★★★★
Good Product
Jeff R—January 11, 2026✓ Verified purchase
Worked as it should Read more
★★★★★
exact replacement
Adam C.—March 6, 2026✓ Verified purchase
works and fits Read more
★★★★★
Works great!
Paul Gammon—January 1, 2026✓ Verified purchase
Works great in my APC 350v UPS Read more
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