Does your radio work, but your tachometer doesn't? It is probably your SI board batteries!
This is a set of two new replacement SI batteries for the BMW E30. They are pre-laser welded to the bus bars for easy installation into your SI board.
Note: Not all SI boards use these batteries and opt for a different style, so make sure to check your SI board first before ordering. I have attached an example photo of what your SI board should look like to make use of these batteries.
Voltage - Rated | 3 V | |
Capacity | 850mAh | |
Size / Dimension | 0.57" Dia x 0.98" H (14.5mm x 25.0mm) | |
Termination Style | PC Pin (Horizontal Mount) | |
Discharge Rate | 0.5mA | |
Weight | 9 g |
BMW E30 SI Board Batteries Sanyo / FDK Pair
$15.00Price