Ratings may include incentivized customer reviews.
What Customers Are Saying
The battery offers excellent runtime and consistent power output. It has a compact, lightweight design that is easy to handle. The battery charges quickly and is built to withstand heavy use and drops. It is compatible with a wide range of Bosch and partner brand power tools. Overall, this is a high-quality, reliable battery that delivers outstanding performance.
Customer review summary generated by AI, including incentivized reviews.Great product.
Would RecommendAffordable extra battery to get the job done. Fast charging.
Verified Purchaser
Battery usage was great!!
Would RecommendThe battery time… didn’t have to recharge after doing 1 job… could run multiple times before a recharge!!
Verified Purchaser
Fresh battery pack and great savings as Lowes
Would RecommendWorks well for all Ampshare tools at home
Verified Purchaser
Best 4ah on the market
Would RecommendPerfect ergonomics for an 4ah battery. Adding this as a spare to another one I use for two years, still going strong
Verified Purchaser
Good price for the size
Would RecommendVery good product
Verified Purchaser
Great Deal
Would RecommendExactly what I ordered at a great price
Verified Purchaser
Bosch four amp hour battery
Would RecommendDouble the runtime of my two amp batteries which are working great after seven years. Weighs about the same as a two amp battery. Bought this on sale at $50.
Verified Purchaser
Pricey
Battery worked as expected but it was a bit pricey.
Verified Purchaser
$40 daily deal
Would RecommendI have only charged it, but considering the regular 2.0Ah that holds up well in the impact, I am sure it will be worth the $40 sale price...
Verified Purchaser
More Power = Bull
Would Not RecommendI bought a pair of these and they do not perform like described below. Quote: "POWER AND RUNTIME: Delivers 2x the runtime and 60% more power compared to BAT612 18V 2 Ah battery" End Quote: With my impact driver I was disappointed in its torque. I was told the above. It isn't true. I estimate an additional torque of about 3%. Sending them back.
From boschtools.com
Nice battery!
Would Recommend[This review was collected as part of a promotion.] I got the Bosch CORE18V 4 Ah battery, and it’s been a game-changer for my tools! It’s super lightweight but still packs a ton of power ,way more than my old 2 Ah battery. I can drill, grind, and even do some light chipping without worrying about running out of juice. The CoolPack technology keeps it from overheating, and the charge-status indicator is super easy to read. I also like that it works with all my Bosch 18V tools and even other AMPS...
From boschtools.com
Amazing power in a slim package
Bosch is a great German product!
Verified Purchaser
Good value for the money
Would RecommendHolds a charge for a good amount of time
Verified Purchaser
My fiancé loves it.
Would Recommend[This review was collected as part of a promotion.] My fiancé is really enjoying his experience with the Bosch 18V COREB 18V Lithium-Ion 4.0 Ah Compact Battery. It gives him great battery power without all of the normal battery weight. He’s used it to finish jobs around the house, such as putting up and taking down light fixtures. It’s also being utilized to repair the porch lattice. I would recommend it to my friends and family.
From boschtools.com
Lowes with the right trained staff
Would RecommendYou honored a price for 55% off that had an old in store price tag on it for considerably less than the original list price and the tag was past its sales experiation date .
Verified Purchaser

Thank you for your rating and for sharing your feedback. We’re sorry to hear that the CORE18V® 4 Ah battery did not meet your expectations when paired...