Does the DCB124G fit all DeWalt 12V Max tools?

It fits current 12V Max tools such as the XTREME drills, impact drivers and oscillating tools. Some older 12V Max models predate the slide-style pack, so check the tool's battery type before buying.

How does the 3Ah pack compare with the 2Ah 12V Max battery?

It stores 50 percent more charge, so it runs longer between swaps. It is also a bit larger and heavier, which matters most on compact screwdrivers.

Will it work in DeWalt 20V Max tools?

No. The DCB124G is a 12V Max pack and only fits 12V Max tools and chargers. For 20V Max tools you need a 20V Max battery.

What charger does it need?

It charges on DeWalt 12V Max chargers and on the 12V/20V Max combo chargers that list 12V Max support. A full charge takes roughly an hour on the faster chargers.

What does the LED indicator show?

A button on the pack lights three LEDs to show roughly how much charge remains, so you can check it without putting it on a tool.

Is it worth buying as a spare?

If you already own 12V Max tools and run out of charge mid-job, the extra capacity and the charge gauge make it a sensible spare. If your tools came with 2Ah packs and you rarely drain them, the smaller pack is lighter.