CS-AM1645SL : Battery for Apple Magic Keyboard, Magic Trackpad 2 Keyboard control, MLA22B/A and others - Replaces Apple 210000004542, A1645, A1645 CL82263 These re-charge with your stock

These re-charge with your stock MFJ charger

Fits Model

Continuous discharge: 2A

it powers itself off

2000NCP Transmitter

CS-AM1645SL : Battery for Apple Magic Keyboard, Magic Trackpad 2 Keyboard control, MLA22B/A and others - Replaces Apple 210000004542, A1645, A1645 CL82263 These re-charge with your stockThe CS AM1645SL is a replacement rechargeable battery for Apple products. This battery replaces the following OEM part number(s): Apple 210000004542 Apple A1645 Apple A1645 This battery is compatible with the following model(s): Apple Magic Keyboard Apple Magic Trackpad 2 Keyboard control Apple MLA22B A Apple Magic Keyboard 2 Wireless Apple A1644 Apple A1843 Apple Magic Trackpad 2 Keyboard control Apple MLA22B A Apple Magic Keyboard 2 Wireless Apple