If you own a DeWalt 20V MAX or FlexVolt battery, any current DeWalt 20V MAX-family charger will charge it. The surprising part is that the amps only control speed, not compatibility, so charger compatibility is actually looser than tool compatibility.
With DeWalt tools, the platforms are usually cleanly separated: 12V MAX tools take 12V MAX batteries, 20V MAX tools take 20V MAX batteries, and 60V MAX FlexVolt tools take FlexVolt batteries. Chargers do not follow the same strict lines. A single DeWalt charger can often handle multiple battery families, which means one charger on your bench can cover more of your kit than one tool ever could.
DCB1104: the three-battery charger
The DCB1104 is the most flexible of the current DeWalt chargers. DeWalt says the DCB1104 12V MAX/20V MAX 4 Amp Charger lets you “Charge your DEWALT 12v MAX, DEWALT 20V MAX, and flexvolt batteries with the DCB1104 charger.” That is one charger covering three battery families at 4 amps. It is the only current 20V MAX-family charger that also explicitly accepts 12V MAX batteries in the same unit.
DCB118: the 8 amp fast charger
The DCB118 is the charger most people search for by name. DeWalt’s page for the DCB118 20V MAX/60V MAX FlexVolt 8 Amp Fast Charger states it “Works with both DEWALT 20V MAX and 20v/60V MAX flexvolt batteries.” It delivers “8 amp for premium batteries, 4 amp for compact batteries,” and has an internal fan “to help limit hot/cold pack delays.” Again, the speed changes with the battery size; the list of accepted batteries does not split by platform.
DCB1112: the 12 amp bench charger
The DCB1112 is the fastest of the three. DeWalt’s page for the DCB1112 20V MAX/FlexVolt 12 Amp Fan Cooled Fast Charger says it works with “DEWALT 20V MAX and flexvolt 20v/60V MAX batteries” as a “12 amp fast charger.” The only specific charge time DeWalt publishes is for the FlexVolt DCB609 on this charger: it “Charges a DEWALT FLEXVOLT DCB609 lithium ion battery to 80% capacity in under 45 minutes,” with a full charge taking “approximately 1.5 hours.” DeWalt does not publish exact charge times for every capacity on every charger, so avoid guessing at times for other battery sizes.
The DCA1820 adapter is a separate rule
The DCA1820 18V to 20V MAX Adapter lets you run a 20V MAX battery on an older 18V tool, but it does not widen charger compatibility. DeWalt says “This adapter will not work with 20V/60V flexvolt batteries,” and it requires a 20V MAX charger; it will not fit into 18V chargers. So if you are using this adapter, you still need a 20V MAX-class charger and you still cannot use a FlexVolt battery with it.
Practical takeaway
Any current DeWalt 20V MAX-family charger — DCB1104, DCB118, or DCB1112 — will charge both a standard 20V MAX battery and a FlexVolt battery. You do not need a separate charger for each battery type. The amp rating only changes how fast it charges, not what it accepts. The one exception worth knowing is 12V MAX: only the DCB1104 explicitly also charges 12V MAX batteries in the same unit, so if you own 12V MAX tools too, that is the charger to look for. And remember, the DCA1820 adapter needs a 20V MAX charger and will not work with FlexVolt batteries at all.
How this was checked
Facts on this page are drawn from DeWalt’s own DCB1104 12V MAX/20V MAX 4 Amp Charger, DCB118 20V MAX/60V MAX FlexVolt 8 Amp Fast Charger, DCB1112 20V MAX/FlexVolt 12 Amp Fan Cooled Fast Charger, and DCA1820 18V to 20V MAX Adapter product pages.
Sources checked: 2026-08-11. A new review date will only be set after the linked pages are re-checked.