Appropriate charger for 24v LFP scooter battery?

[wbwoodward]

I am using two 12v 16ah LFP batteries in series as drop-in replacements for an electric mobility scooter. I've been trying to find a replacement charger with the appropriate voltage. I see a lot of 29.4v 2 amp chargers but nothing around 29v or 29.2v. Does anyone have a source for such a charger? I'm talking about the kind as pictured with an in-line transformer. I'd like to keep it around 2 amps or less. I'd rather not have to carry around an adjustable bench top charger. Will using 29.4v cause any problems, long term or short term?

 

[snoobler]

Anything over 27.6V will get you to 99%+ SoC, but might take longer.

Anything under 29.2V is "safe".

I would not use 29.4V as it's designed for 7S 3.7V lithium, and it's over the 3.65V max.

 

[mikefitz]

A quality charger from Victron should work well with your batteries,

Blue Smart IP65 Charger (120V and 230V) - Victron Energy

The Blue Smart IP65 Charger is the new professional battery charger with built-in bluetooth. Find a Victron Energy dealer near you.

www.victronenergy.com

Mike

 

[wbwoodward]

Anything over 27.6V will get you to 99%+ SoC, but might take longer.

Anything under 29.2V is "safe".

I would not use 29.4V as it's designed for 7S 3.7V lithium, and it's over the 3.65V max.

Thanks, good to know. I figured 29.4v was too high from what I've been reading.

 

[wbwoodward]

A quality charger from Victron should work well with your batteries,

Blue Smart IP65 Charger (120V and 230V) - Victron Energy

The Blue Smart IP65 Charger is the new professional battery charger with built-in bluetooth. Find a Victron Energy dealer near you.

www.victronenergy.com

Mike

Thanks for the link. Looks like a good product.