Kitronik 2145 Coin Cell Power Board Kit This simple kit offers a compact alternative to using two AA batteries. The coin cell holder takes a CR2032 cell, which is included. There is a small on / off switch and pads with strain relief to take power from the board. Coin cells can deliver about 20mA continuous current which is enough to power several of our kits such as the bike light , easy build https://elecena.pl/product/16395881/coin-cell-power-board-kit 2020-04-06 https://elecena.pl/product/16395881/coin-cell-power-board-kit 2020-09-01 https://elecena.pl/product/16395881/coin-cell-power-board-kit 2021-03-02 https://elecena.pl/product/16395881/coin-cell-power-board-kit 2025-07-09