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I know that my LiFePO4 battery can handle up to 10C charging which would be 200amps! Leafspy shows far lower charging rates and as long as the charging voltage does not go over 14.4v, and it doesn't I have monitored it for over a year, the lithium ion battery is quite safe and promises a longer...

You can pick your preferred flavour of battery. There is much less real world long term data on lithium ion used as a vehicle starter battery. However I changed mine to save weight and I saved 8kg so it's not insignificant, and also to get rid of the lead which seems an awful material to have...

The running away issue is serious and should be addressed I've never heard of a leaf doing this before. Part of the reason for changing the lead acid battery to a lithium one is reliability. Lead acid is not reliable, we've all had a dead battery before and it always causes inconvenience, if...

The only reason I did this was that the battery I purchased is not waterproof, although it has a balancer (but no low battery cut-off so I am keeping an eye on the voltage using a cigarette light socket plug in gadget).

Thanks for your reply, as I couldn't source one of these batteries in the UK I went a different route and wrote it up here: https://electricjourney.wordpress.com/2014/10/16/lithium-lead-acid-battery-replacement/" onclick="window.open(this.href);return false; I have so far (3 months) found it...

It might be worth checking this thread about replacing the lead acid battery with a lithium battery. http://www.mynissanleaf.com/viewtopic.php?f=37&t=4819&hilit=Lead+acid+battery" onclick="window.open(this.href);return false;

My only reservation about lithium ion as a replacement for the lead acid, is to do with float charging which is normal for lead acid batteries but harmful for lithium ion. Does anyone know precisely the charging algorithm the Nissan Leaf adopts when charging its lead acid battery? I understand...

How have you been getting on with your 20Ah Lithium battery, I would like to do this myself? May I ask what battery did you go for?