Replacement Charger for MK12 & for MK18 Multi-Volatge Rapid Charger for 48-59-1812 MK 12 Volt and 18 Volt XC Lithium-Ion Battery 48-11-2420 48-11-1815 48-11-1840 48-11-1841 48-11-1850

It work perfectly good, is great because charge with 2 different sizes

Looks quite similar to the OEM version, of which I have had TWO break for no reason at all; and they're overpriced. This was a decent alternative at a reasonable price. Seems good so far. EDIT - This charger doesn't charge batteries consistently. I just charged one and it seemed okay. But the indicator lights tried to tell me it was "green," meaning fully charged, even though it was fully discharged. This means the charger stops charging. I wiggled it and pulled the battery and tried a few times and randomly the light went red and started blinking, which means it's charging, and it worked! ... but then I put the next battery on, and it just goes green, even though the battery is on only one bar on the battery itself. This thing is a piece of junk. I can't get it to simply reliably work.

Used to charge a 5.0 amp Milwaukee M18 impact battery. Battery was down to lvl 1 on charge, this charger charged it to full in about an hour. I don't have an M12 battery to test yet.

Great value compared to name brand chargers. Highly recommended.

Worked but slow

Works great

Muy buen producto envio rapido

Bought August 31st 2025. Failed December 7th 2025.