Built-in protection circuit (PCM) prevents over charging/discharging.
CELLONIC 1x Battery for Computer Compatible with Logitech MX Keys, YR0073, 533-000177 - (1500mAh, 3.7V)
TECHTEK battery replaces 533-000120, for 533-000121, for AHB303450, for L/N: 1412 compatible with [LOGITECH] 910-004362, 910-004374, M-RO052, MX Anywhere 2, MX ERGO, MX Master, MX Master 2, MX Ma FBA
subtel, Computer Battery, compatible with Logitech MX Master 3, MX Master (450mAh, 3.7V)
subtel, Computer Battery, compatible with Logitech MX Master 3, MX Master (450mAh, 3.7V) + Tool set
CELLONIC 1x Battery for Computer Compatible with Logitech MX Vertical, 810-006368 - (180mAh, 3.7V)
Battery for Logitech MX Air Li-ion 3.7V 600mAh - 831409, 831410, 190310-1000, NTA2319, L-LL11, 190310-1001