Long life and lasting stability of the charging performance u normally lasts 20 hours after fully charged u only 3 hours to fully charge u the built-in microprocessor, u li-ion battery charging control cycle technology discussed the rechargeable battery is wireless devices of power supply. The battery is a high-capacity type of lithium battery that can be fully charged for up to 20 hours of typical use. Dcn-wliion takes 3 hours from power exhaustion to full charge. Compared with other types of rechargeable batteries, lithium-ion batteries do not have the problem of poor charging performance. This provides maximum flexibility for charging arrangements (no need to run out of battery power before charging). The "smart" battery has a built-in microprocessor to control the charging current and prevent overloading. Basic function controls and LED lamp, charging volume and press the test button to interconnect cable, power supply/charging connector certificate and approval certification European CE technical specification electrical output voltage 7.2 VDC capacity of 4800 mAh mechanical index size high (deep) x width x 61.5 x 136 x 22 mm (2.4 x 5.5 x 5.5 inches), weight of 215 grams (0.47 pounds) color carbon black (PH 10736) order information DCN WLIION‑D wireless discussion device battery pack new generation DCN system wireless conference discussion device battery pack, carbon black, lithium, 7.2 VDC, 4800 mAh. DCN‑WCH05 charger, hardware accessory of dcn-wliionion-d, order no. DCN- WCH05, is used to charge 5 batteries for the new generation of DCN system charger suitable for 5 battery packs, carbon black, most of which can be charged for 5 dcn-wliion battery packs. Order number DCN - WCH05