PowerextraUpgraded 2 Pcs 10.8V-12V 3000mAh Li-ion Replacement Battery, Compatible with Bosch BAT411 BAT411A BAT412 BAT413 GBA12V30 BAT414, 2 Pack

Perform equally as good as the OEM batteries, always great to have a few spares.

Great battery and fit for the price......they were 100% compatible with my Bosch drill.

fit good

The replaced the originals and have good power and last a reasonable amount of time. Good value if your originals are losing their charge quickly.

One of these would not lock in to the drill at all, it just fell right out. The other one mostly stayed in if I really jammed it in hard with my palm, but it didn't lock into place; it would occasionally fall out on its own, and I could easily pull it out without depressing the tabs. The tabs eventually broke from my having to smack it into place so hard. Don't waste your money on these.

I was initially concerned about it fitting in my drill as there is a plastic nub or column close to electrodes. This made it really tight fitting, but my tools are pretty new. Upon investigation, that plastic nub is exactly the same on higher capacity Bosch batteries.I am grateful to get both if these high capacity batteries for less than one lower capacity Bosch brand battery.I cannot speak to durability at this time, but for now they are working very well.They are compatible with both of my Bosch tools and with my Bosch charger.

both failed with different problems. first one does not slide in properly to any of my 4 bosch tools. Seems the pins are bent inside so it never bottoms out or makes a connection. Second one does not reliably allow the tool to operate. Oddly when you pull trigger the "spot light" always comes on but about half the time the tool does not operate, except the saw tool which works every time and does not have the light feature. All 4 tools work fine with original bosch batteries. didn't expect issues like this returning for refund.UPDATE: requested return was contacted directly by Powerextra. They sent a return label and immediately shipped out two replacements both fit and work fine. Great customer support could not have asked for more. Sometime things like this happen and a good company will make it right.

Purchased the 2 pack, only one works. After contacting customer service and explaining what exactly was wrong with the second battery, it was suggested by them that possibly I had the wrong battery for my application. Uh, I purchased two batteries and only had a problem with one so... Then they wanted pictures and batch numbers off the battery. Eventually I contacted Amazon and I did receive a replacement battery for the defective one. So far the batteries seem to work ok and hold a charge as well as the originals. Time will tell.