Yes I agree it's probably condensation, still hardly an ideal situation for delicate electronics ."but the case was distinctly damp inside, case very well sealed,"
Simple condensation issue due to atmospheric conditions. When the battery heats up during use and then cools down some moisture will occur, albeit a relatively small amount, that will build up inside the casing over time especially if the case is very well sealed and no way for any escape via air flow.
Notice that the new Haibike flyon has an actual air duct built into the system. Not only to evacuate heat build up but also the effect your battery has.
There are only 8 screws, but inside the case there are 5 internal clips down each sideWere there any screws lurking under any stickers? I tried to take mine apart the other day when I had some issues after the bike had been washed upside down.
The battery case has cracks radiating from where the retaining bolts pass through it so I wanted to check for water ingress.
After taking out the 8 obvious screws I couldn’t tease it apart with the usual electrical casing tools.
Hi, can you take the battery out easily - ie currently have an external Shimano 8020 so battery lives in house and is charged in the house, so can you do that with the focus and if so how much hassle is it, ta
Daggnabit, really like the lightness of them but I also really like being able to remove the battery(house, hotel, motorhome charging), I see the later Bosch ones appear to be removable but you loose the weight advantage ............ ho humNo, you have to take the motor out to remove the battery. Not a particularly onerous task but certainly not quick and easy.
So sorry to hear about your luck with the batteries. Not sure what could be going on here. I'm assuming the wheels all turn freely and you're getting a decent amount of mileage out of the battery initially, which would indicate normal current draw. Could the fault lie with the charger? If not then that either means some bad batteries are out there or there's some issue with the motor overloading the battery (should show up in reduced range I would think).Am I the most unlucky focus jam owner ever?
After my original battery failure at 136 miles new battery ordered and all going well until yesterday.
Guess what, new battery has went tits up at 525 miles!! Same symptoms as before, bike will not switch on or charge, charger fine and all wiring fine.
Am not taking this one appart , hopefully get a warranty claim.
Interesting this battery has developed stress cracks around various casing screw holes.
Talk about a love hate relationship!! ( Hate bike at the moment).