Keysight U1573A - Desktop Charger and Li-Ion Battery Pack
The Keysight U1573A Desktop Charger (2-output, 3A) and Li-ion battery pack are compatible with the U1610A / U1620A handheld digital oscilloscopes. The battery pack is 10.8 V, 4800 mAh, and will give up to 3 hours of use per full charge.