DeWalt DCB2104-2 20V MAX XR 4Ah Battery 2-Pack vs DeWalt DCB2108 20V MAX XR 8 Ah Battery
Buy the two-pack of 4 Ah batteries if you run several 20V MAX tools and want spares that keep each one light and balanced. Buy the single 8 Ah battery if one tool does the heavy, continuous work, such as a circular saw, grinder or string trimmer, where runtime per charge matters more than swapping packs. Both use DeWalt's tabless cell design and overmolded base, and owners rate the 8 Ah highly for runtime and heat. The 4 Ah packs are easier to handle and fit tight spots; the 8 Ah weighs about 2.2 lb and is bulkier.
- Choose the DeWalt 4 Ah two-pack if you want two lighter packs to spread across several tools and swap on the fly.
- Choose the DeWalt 8 Ah Powerpack if one high-draw tool needs the longest run per charge and you can live with the extra weight.
Prices
- DeWalt DCB2104-2 20V MAX XR 4Ah Battery 2-Pack: $92.00 at Tool Pass Pro (last seen Nov 9)
- DeWalt DCB2108 20V MAX XR 8 Ah Battery: $90.91 at Tool Pass Pro (last seen Nov 9)
- Difference: the DeWalt DCB2108 20V MAX XR 8 Ah Battery is $1.09 cheaper than the DeWalt DCB2104-2 20V MAX XR 4Ah Battery 2-Pack at the latest prices (Nov 9)

