Replacement battery for 500E. Specifications: 3400mAh, 10.8V, Li-ion. Compatible with: 500E, KomShine EX39, KomShine Fusion Splicer. Replaces: Jilong BTR-34S, KomShine BTR-34S. Jilong replacement battery designed for Equipment/Survey/Test Charger devices. Provides reliable power for your device.