Bosch 500wh Battery Indicator lights flashing

thecolonel

New Member
Following a ride yesterday (which utilised 50% charge), I was putting gear away when I noticed my Bosch 500wh indicator lights were flashing. The first three bars would illuminate for about 2seconds, then go out for 8seconds, and repeat ad infinitum. Pressing the indicator button did nothing. Putting it on charge did nothing. I contacted the dealer who had never seen this before, but contacted Bosch while I was on the line. The advice was to hold the indicator button for about 10seconds to reset the battery. Unfortunately the button didn't have any effect. It was also suggested to check for cracks in the battery case as water may have found its way in, again nothing obvious. I had to go out for an hour, so left the battery on the garage floor well away from anything (just in case). When i returned the battery had returned to normal and could be charged, the button was operating as expected. I have since visited the dealer who has run a full diagnostic but no error codes have been recorded in any of the systems. The manual depicts certain error codes for battery being to cold, etc but not the flashing 3 bars I have experienced. Has anyone else experienced this phenomenon, or can shed light whether this was an error code?
 
I have just experienced the same problem. I am sure that it is the charger at fault because I used a friend’s charger with my battery and it was OK. I attached my charger to her battery and the same issue arose. Less than six months old so will ask for replacement.
 
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