When using a 100W power supply (not included), the adapter can charge a Dewalt 20V Max 5Ah battery in around 60 minutes. When using the included components, the adapter can recharge a Dewalt 20V Max 2.0Ah battery in about 40 minutes, and a 5Ah battery in about 90 minutes. With the included adapter, Dewalt 20V Max batteries can be charged at a rate of 3.25A. The 65W adapter is larger than smartphone and tablet chargers, but still what I would consider easily portable. We will continue to evaluate smaller 100W offerings for future configurations of this kit to increase the charge rate for battery charging. We chose to kit with a 65W AC power supply due to the user feedback we received in regard to their acceptance of size, portability, and overall value of the kit in terms of MSRP. We asked Dewalt about this, and here’s what they said: I assumed that the included 65W charging adapter signified a balance between cost and capabilities, but there’s more to it. A 100W AC charger (or higher) should work well. To take advantage of the adapter’s fastest Dewalt battery charging rate, you’ll need a higher wattage AC power brick than the included 65W adapter. The battery port input and output are rated at 6A at 20V. The USB-A port is rated at 12W max – that’s 2.4A at 5V – and the USB-C PD port is rated at 3A at 5-15V and 5A at 20V. The charging adapter has two ports – a USB-A port, and a USB-C PD input and output port. You can use lower power AC charging adapters as well – I tested the adapter with a 20W USB-C smartphone charger, and it seemed to work just fine, albeit slowly.
(This creates the most compact portable battery bank configuration possible.) I have the Dewalt power adapter connected to and charging a Dewalt PowerStack battery. And, with the included – or industry standard – accessories, you can use the adapter as a Dewalt 20V Max power tool battery charger. You can use the DCB094 as a USB power adapter, turning any Dewalt 20V Max or FlexVolt battery into a portable power bank.