PhaZZer® Enforcer Red Label Rechargeable Battery W/ Overcharge Prevention Chip and Red Label Charger Combo. To use the PhaZZer® Enforcer (Red) Replacement 7.4V Lithium-Ion Rechargeable Battery, you must be using the Enforcer/Dragon Charger (red), Part Number: 1C-AC. This charger has a red sticker on the unit. Failure to use the correct PhaZZer® Enforcer Charger will cause damage to your battery. PhaZZer® will not be responsible for any damages if you are not using the Enforcer/Dragon Charger (red), Part Number: 1C-AC.