Don't get caught without power, have a spare, rechargeable NiMH battery on hand. This helps reduce downtime due to a depleted battery. The battery is easy to carry, easy to change.
Compatible with: EM, FV500, FV600, FV800, MC, MD, MJ, MR, T4800, T4900, T5000, T5320, T5400, T5500, ...