Roger, you could but It should not be necessary. I'll flog the spare instead.
Update for today, what happend to the forum/site ealier it went AWOL
I have the Master up and running in a fashion for the first time with the Master software
![Shocked :shock:](./images/smilies/icon_eek.gif)
Ha Ha.
It's talking to the slaves and I have my charger connected to the 5 test cells at 200ma just to boost them up a bit.
I added some hystersis to the Digital slaves as well, as they were hunting at the load switch on point.
The comms is working to the Master fine, but the Master software has a shed load of bugs as I expected. The display is working pretty well now, and gives you all the basic info you need, the pack temp sensor and dash buttons inputs also works which is good.
At the moment the Master thinks one of the cells is Over the Abs Max V 3.80v which it isn't, and the data it is recieveing says it isn't, but it still thinks it is, Oh well time to scratch my head, got a + & - mixed up somewhere.
www.solarvan.co.uk/bms/MasterFirstRun.jpg
It's doing something at least, but even the Digital Slaves on their own rapidly balanced the cells to within 50mv of each other which was very pleasing, even with the Master off line. I'm pleased with the Slaves. Just got to finish Master software and wire it all up. Well I've got plenty of time this week to tinker with Master Software. The only tweaking left to do with Slave software is to reduce the delay to the minimum to give maximum pack scanning speed. Must add the decimal points into the display!!
Software versions for the Digital Slaves and Master I have been working on today.
www.solarvan.co.uk/bms/SlaveSimpleDigital_v07.txt
www.solarvan.co.uk/bms/Master110908_v04.txt