Bendy toy
Registered user
I've not used the bike for quite some time (just too damn busy with kids and work to sort the starter motor). The JMT battery got neglected but hey it's safe for long periods of disuse. You think?
This weekend, I dragged the bike out to replace the starter and get the battery charged. OMG the test button showed nothing. Booger! I should have disconnected the battery earth. Looks like I've bricked it. What a plonker for not getting my finger out.
My standard car charger has not seen the light of day in a (very) long time and of course it self toasted when plugged in. I rigged up a pair of wires from the car battery to connect the JMT for charging. Started the car and connected the JMT. After a while, I disconnected the car battery negative terminal clip and ran the engine for an hour. The system voltage sat around 13.8 volts. At one point, I connected the multimeter in current mode and found it was pulling 1.3 Amps.
After an hour, the battery test button was showing three lights. It's only 4 amp hours, so an hour at 1.3A wont be 100% full but test button said yes. Great news the new starter is great - A LOT BETTER than the Motorworks service exchange ever was - and 24 hours later the battery test is still showing the full three lights.
The JMT Lithium battery protection circuit works. The cells were not allowed to get harmfully flat and the used starter motor from Poland was well worth the punt. Now to find a reasonable plain vanilla car battery charger to get it properly topped up.
This weekend, I dragged the bike out to replace the starter and get the battery charged. OMG the test button showed nothing. Booger! I should have disconnected the battery earth. Looks like I've bricked it. What a plonker for not getting my finger out.
My standard car charger has not seen the light of day in a (very) long time and of course it self toasted when plugged in. I rigged up a pair of wires from the car battery to connect the JMT for charging. Started the car and connected the JMT. After a while, I disconnected the car battery negative terminal clip and ran the engine for an hour. The system voltage sat around 13.8 volts. At one point, I connected the multimeter in current mode and found it was pulling 1.3 Amps.
After an hour, the battery test button was showing three lights. It's only 4 amp hours, so an hour at 1.3A wont be 100% full but test button said yes. Great news the new starter is great - A LOT BETTER than the Motorworks service exchange ever was - and 24 hours later the battery test is still showing the full three lights.
The JMT Lithium battery protection circuit works. The cells were not allowed to get harmfully flat and the used starter motor from Poland was well worth the punt. Now to find a reasonable plain vanilla car battery charger to get it properly topped up.