why can motorbike batteries sit on a shelf unused without losing charge but when sitting inside a motorbike for a few weeks that hasn’t been turned on, go dead?

Question

why can motorbike batteries sit on a shelf unused without losing charge but when sitting inside a motorbike for a few weeks that hasn’t been turned on, go dead?

In: Technology

Answer 1

There are two things:

First, some portions of your bike’s electrical systems will often remain on when the bike is turned off, causing minimal, but noticeable drain.

Second, on the shelf the battery is in a climate controlled environment, while in the bike it is not. Repeated heating and cooling causes many types of battery to lose charge, especially if it is outside of the battery’s ideal temperature range.