Original Battery A2479 Type Li-Ion 2815 mAh, non-removable (10.78 Wh) Volt 3.8. 
APN: 661-17920 
Charging Fast charging 20W, 50% in 30 min (advertised) 
USB Power Delivery 2.0 Charging cycles: 0 
Qi magnetic fast wireless charging 15W 
Stand-by Up to 17 h (multimedia) 
Music play Up to 65 h
Compatible models Apple 
iPhone 12 (A2403, A2172, A2402, A240), 
iPhone 12 PRO (A2407, A2341, A2406, A2408).