Rebuilding a Ryobi 20V 1.5Ah

In this post we are going to show how you can easily change the cells on a Ryobi 20V 1.5Ah Battery.

The case of the battery is secured by torx screws size T10 (with hole).

The battery has a cap on one of the screws that works as warranty seal. Removing it will break any active warranty.

Removing the battery pack from the case is effortless.

Disolder the balance wires and remove the nickel strips that connect the cells.

Replace the old cells with new BAK N18650-COP ones. With this upgrade the battery will have increased capacity, 2.5Ah from 1.5Ah and more power, with COP's ability to reach 30A maximum discharge rates.

Once we finish spot welding the cells together, we solder the balance wires.

Place everything back in to the case and the end result is a new battery that cost less than $50 and has more capacity and power even from a new Ryobi battery.