8878 Rechargeable Battery Box
Charge up your LEGO® Power Functions!
No more disposable batteries! This rechargeable battery box has built-in Lithium polymer batteries for low weight and maximum power. Use it in your LEGO® Power Functions models and never have to use disposable batteries again!
- Use the #8887 10VDC LEGO Transformer to charge the battery!
- Motor speed can be controlled via the battery box speed control dial!
- Output voltage is 7.4 V!
