I contacted a domestic batterystore about the battery, but they didn't have the exact model in store... They came up with this: http://www.altitec.no/index.php?main_pa ... s_id=13383
Do you think this will work with my crank?
It has the same voltage (3.6 V) and use the same LiSOCl2 (Lithium Thionyl Chloride) battery chemistry, so it should work. It's just a question if it will fit or not.
Have you checked if your SRM use the rectangle or round battery?
Altitec list all the dimensions of the Sonnenschein Lithium - SL340/P at their website, so we can compare them to the dimensions of the original Eltrochem 3B880 battery, which can be found here: http://store.batteryspecialists.com/3b880.html
At the pictures belo, the dimension's for the Eltrochem 3B880 on the left are in inches and the dimensions for the Sonnenschein Lithium - SL340/P on the right are in mm, so the numbers have to be converted.
The original battery has a height of 0.297'' (7.54 mm); the other one is about the same height (7 mm).
The original battery has a diameter of 1.001'' (25.4 mm); the other one is a bit smaller (22.8 mm).
So the Sonnenschein SL340/P should fit in the hole, but since it's a bit smaller than the original you will probably have to glue it so it won't rattle. Try with a bit of hot melt glue or silicone. Don't use epoxy, then you will probably not be able to remove it again.