About this item Battery Type: voltage:3.7V; capacity:6040mAh/22.46Wh. Premium li-ion cells for longer battery life with no memory effect. Batteries can be charged or discharged at any time without harm. Compatible Models: this battery is specially designed for the brand Ring Doorbell 2/3/4 series doorbells, LED Instructions: It is easy to diagnose the charging status through the changing of red and green indicators. When red and green lights are on, the battery is starting charging. When the 2 lights both green, the battery is fully charged. Multiple Protection: Built-in Multiple Circuit Protection From Overcharging, Short-circuiting, Overheating, And Over-voltage to Assure You and Your Device Safety. .
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