When you Cozmo or Vector battery stops holding a charge it is time to replace them. The typical 503040 600 mAh 3.7v lipo is always recomended but it is not the best choice for both robots.
For Vector - get the 503040 600 mAh 3.7V for ~ 45mins of play time
For Cozmo - get a 603035 600 mAh 3.7V for ~ 1hr 30mins of play time
I have these for sale on my shop
techshop82.com...
You can also get them much cheaper on AliExpress, just have to wait for shipping.
20 авг 2024