Well the defective drone battery recharged but the drone controller won’t accept it with screen messages informing me the battery voltage is too low and the battery is damaged.
More online research has revealed other people have had a similar problem. Somewhere in the system is a memory that records the battery used to be defective and now won’t allow it to be used despite being fully charged.
My assumption is the memory function is either in the battery or the controller. As the battery is useless in its current state I decided to fully dismantle it and inspect the battery BMS (Battery Management System) circuit board.
I’s going to unsolder the Red and Black cables that the battery cells to the BMS. If the memory is in the BMS I’m hoping removing the power to the BMS will reset the memory. If this doesn’t work a replacement (expensive) battery will need to be purchased.
On a more positive not I’ve repaired the ebike battery charger. Working on the principle of looking for the simple things first I dismantled the charger.
Then I tested the continuity between the charger and the plug that connects to the ebike. There was no continuity on the negative so I dismantled the plug and found the negative wire had disconnected from its terminal.
A quick touch with the soldering iron and everything was good to go!.
I need to start updating the blog on my latest outback trip!
2 comments :
...purely informational - but I read your blog via Feedly and the pictures don't show there - I have to come to the blog to see them..
Steve,
I suspect you will find this is a Google issue. They have changed their security which required a "work around" in Open Live Writer to get photos to appear in Blogger. My guess is something similar has affected your Feedly?
Tom
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