Each wireless controller requires a 3.7v lithium rechargeable battery for wireless functionality.
The 301230 110mAh Lithium battery sits comfortably under the controller and can be recharged by plugging the controller into a power source via its USB-C connector. This is a great choice for the Sweep Keyboard.
The 402780 1000mAh Lithium ba
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2 week delivery, and no connector piece.
I was disappointed that the battery took so long to arrive, and that it wasn't as pictured. It took 2 weeks to arrive, and it didn't have the connector piece on the end. The 2 wires were just taped at the ends, and I had to strip the wires and splice it with the connector from my dead battery. I am glad to have my keyboard working again, but this purchase wasn't as desired.