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6.5Ah 18V Extended Capacity Battery Replacement for M18 Milwaukee Battery Lithium ion, Compatible with Milwaukee 18V Cordless Tools 2 Packs

  • Based on 12 reviews
Condition: New
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Availability: 20 left in stock
Fulfilled by Amazon

Arrives Friday, Aug 15
Order within 11 hours and 58 minutes
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Features

  • Specification: 18volt 6500mah Lithium ion battery; Replacement for Milwaukee M18 High Output battery, with LED indicator to monitor remaining power
  • Extended capacity Battery: Replacement for Milwaukee 18V Battery 6.5Ah Model: 48-11-1850, 48-11-1865, 48-11-1862, 48-11-1852, 48-11-1850R, 48-11-1840, 48-11-1828, 48-11-1820, 48-11-1815 18V Battery; Charger Model : 48-59-1812 48-59-1808 48-59-1810 48-59-2401 48-59-1204 Rapid Chargers. Please carefully check the original battery model number before purchase
  • Wide Compatibility: 100% compatible with 18v Milwaukee Cordless Power Tools 2646-22CT,2643-21CT,2641-21CT,2646-21CT,2646-20,2848-20, 2880-20, 2953-20, 0880-20,2967-20,2626-20, 2719-20, 2962-20 etc
  • Safety & Stability: Replacement for Milwaukee 18 volt Batteries built in high quality cells and chips can provide over-charge, over-discharge, over-heating, over-current protection, over-voltage protection and short-circuit protection
  • Warranty: FORBETER offers 12 months warranty and friendly customer service,Please contact us if have any questions

Number of Batteries: 2 A batteries required. (included)


Brand: FORBETER


Battery Cell Composition: Lithium Ion


Battery Capacity: 6500 Milliamp Hours


Recommended Uses For Product: Indoor/Outdoor


Package Dimensions: 12.87 x 3.46 x 3.31 inches


Item Weight: 2.94 pounds


Item model number: FB-18V


Batteries: 2 A batteries required. (included)


Date First Available: April 19, 2025


Manufacturer: FORBETER


Country of Origin: China


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Aug 15

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Great batteries at a fair price
While I am typically a brand snob, I couldn’t justify the cost for a single name brand battery when I can get two for less. Charging the batteries was the same as OEM and preformed just the same. I appreciate that the battery life indicator was included as it is something so simple but so helpful. They stood up to mild use working on my vehicle which they got tossed around a bit. I’d recommend these batteries as they are functional just like OEM for a fraction of the price. ... show more
Reviewed in the United States on April 30, 2025 by Austin

  • 4.1ah and 3.6ah
One at 4.1ah isn't bad, one at 3.6ah isn't worth the weight. If both were over 4ah, it would be a pretty solid deal, but as it is, they're going back.
Reviewed in the United States on May 17, 2025 by RF RF

  • 2 batteries that I can rotate while one is charging.
Overall the value for the money is great. I bought the 2 pack, I am glad I did, when one runs out of charge I grab the fully charged one. They do fit my Wisconsin weed eater and charger perfectly. I have a very large yard, so I am sure they would be fine for most people. No problems with the charging. They do have the charge indicator lights on them, for me they don’t work when on the weed eater itself; really no problem; when one dies I grab the other. It is not a Wisconsin battery so don’t expect it to be as good as the original. Again for the price it is worth it. ... show more
Reviewed in the United States on May 27, 2025 by Laymon Johnson

  • Forbeter or worse
Well it wasn’t “for better” that’s for sure, was using these batteries to power a light and it worked fine for a couple of weeks until they started getting hot and wreck the battery power supply with the light completely melting the inside electronics.
Reviewed in the United States on June 10, 2025 by Christopher kolle

  • Stick with name brand replacements
These don't even come close to the milwaukee batteries. I drill out metal panels and enclosures on a daily basis. A full battery lasted me 1 panel. Milwaukee battery lasts for 6 panels. Tried it as a fan back up battery.... barely lasted a 9 hour shift on low fan setting. Milwaukee battery last 2 days on low setting. These are okay if you're hanging wall art. As for a trades person--- don't waste the money. Stick with name brand. ... show more
Reviewed in the United States on May 19, 2025 by Monsta Dee

  • Decent Batteries so far, but far heavier than they should be
Batteries charged up and worked right away. The sheer weight and size of them was surprising. Much heavier than the name brand batteries. Haven't used them long enough to notice if there's a power draw difference, but for the price, you shouldn't be expecting miracles.
Reviewed in the United States on June 4, 2025 by Andrew & Ashlee Martin

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