Talk Morgan Forums Morgan Sports Cars Morgan Three Wheeler & Super 3 JMT Lith - Lonen Battery issues

Hi everyone

I have an issue with my JMT Lithion Battery

Dash board volt reading after disconnecting the conditioner says Low Power before I start - Engine spits & splutters and struggles to start. Strange as after the normal procedure of ignition , engage fuel pump, repeat x3 - then push button, it starts.

This was all before the Indicator module broke. So my question is this...


Could the Indicator Module control / regulate the Voltage /

If so, it would explain the drop in volts

Sorry, Newbie here and want to stay positive with the few issues I'm having.


Also - Does anyone know of any mobile mechanics in the Dorset / Devon area - I need my module fitted.


Thanks

I'm reading the above as it won't start straight away but will if you do the 3x priming first?

Was the temp below about 5c? If so the battery will need "warming up" by switching the headlights on for 30 secs or so then switch off the lights and try starting.

If you have a power pack or can jump the battery then does it start normally.?

Is the conditioner suitable for a Lithium battery? You can't use a non Lithium charger or conditioner as these will damage the battery.

Also worth loosening the battery leads, give them a wiggle/clean and tighten back up to make sure you've got a good connection

Check the earth strap from the battery negative (black) to where its bolted to the chassis.

Thanks Red Leader

Yes, need to prime and yes, below 5c at the moment. The conditioner is a Lithium charger and will not over charge. I'm going to get the battery checked out by my local garage.
I did start tonight and the volts stabilised at 14.4 when the engine was running. Will check the earth strap,

It is likely that the 3x priming is putting enough load through the battery to heat it.

Once it's been started the first time does it restart relatively easily? If so that's normal for Lithium.

14.4 volts when charging is perfect.

One other warning, if you charge a lithium battery below 0c you run the risk of coating the internal cells which reduces it's capacity and in a worst case could cause the battery to catch fire. If the conditioner doesn't switch off at low ambient temp I'd suggest unplugging it until the weather warms up.

Before I found out about Lithium batterie's low temperature "quirk" if it was cold I used to have to turn the engine over for 30 - 50 seconds before it would fire up. Once started it was fine for the rest of the day.

Thanks - I’m going to run full diagnostics on the battery
I suspect it’s all down to the module