How to Recharge Batteries for Mindstorms Robots
- Note: only use RECHARGEABLE BATTERIES
- Fully discharge all batteries before recharging (enhances life of the battery)
- 7 HOUR CHARGER (smaller, rectangular)
- Set charge/discharge switch to discharge (red light should go on: discharging takes 1-2 hours and stops automatically, but you can guesstimate if they are ready to be charged)
- Set switch to Charge (green light should go on), unplug when finished
- 3 HOUR CHARGER (multiple chargers on plywood)
- You MUST have 4 batteries in any specific charger for the charger to work
- Plug in and press red start button. The discharging indicator will go on automatically, and after one hour the charger will automatically switch to charging mode
- Charger automatically turns off after 3 hours
- After charging, charger must rest unplugged for about 30 seconds before being used again