. Alternative to primary battery, standby time and call time are equal. 2. Lithium ion batteries provide excellent continuous power supply for your equipment 3. Good quality and long service life 4. Compared with nickel cadmium batteries, lithium-ion batteries have no memory effect. 5. If you do not use batteries for a long time, please keep them in a cool and dry place and charge them every three months. capacity3,200 mAh