CHAUNVEN - Replacement battery for Makita 18V battery compatible with BL1830B BL1840B BL1850B BL1860B BL1815B 18 Volt

The price is good and the quality seems good. Time will tell.

I've been using these constantly for a month and a half, they seem really good. I was disappointed when they arrived they are not the same size of my other 3000 mAh batteries. I think they are 1500 mAh but they are definitely worth the price.

I am a professional collision repair technician, and I run these batteries hard all day. Sometime much harder than they should be run in my big drill. They the abuse, work perfectly, last all day usually, and charge quick. The last pair I bought lasted me 3+ years and I've got a couple months on the new set and they're doing great. This is an incredible value. PRO TIP: They aren't always fully charged, even when the charger and the meters say they are. Leave them on the charger to trickle and they usually have more left in them.

fits my makita jacket perfectly

These seem to work and fit well enough. Definitely not the same charge capacity as the equivalent Makita branded batteries, but what do you want for a fraction of the price.