Caring for your LIFEPO4 battery

Gavinwr27 · Member

Caring for your LIFEPO4 battery

dorian · Guru

The warning regarding temperature limits (0C and 30C) is a bit concerning. Are users of these batteries seeing problems outside this temperature range?

Jaahn · Guru

Gavinwr27 wrote:
I just found this really informative article on the inter web and thought I would share it https://www.solacity.com/how-to-keep-lifepo4-lithium-ion-batteries-happy/

Hi Gavin smile

That looks like a good site to read stuff from. Canadian site ! I will read their other information also later. wink

Jaahn

Is this link easier to get to for the computer challenged !

https://www.solacity.com/how-to-keep-lifepo4-lithium-ion-batteries-happy/

-- Edited by Jaahn on Wednesday 1st of January 2020 10:20:04 AM

Hylife · Guru

dorian wrote:
The warning regarding temperature limits (0C and 30C) is a bit concerning. Are users of these batteries seeing problems outside this temperature range?

Not a big problem in Australia.

Operational temperatures for LiFePO4 is -45C to 85C but users must remember that cell temperatures rise sharply by up to 15C under very heavy charge and discharge rates.

Users should also be aware that Ions are difficult to load in the crystal structure of Lithium at temps below approx. 0C and not at all below -3C.

Most LiFePO4 'batteries' have an inbuilt BMS that performs a whole host of functions such as cell balancing, limiting excessive current into and out of the cell pack, and will usually prevent charging at cell temperature extremes of below 0C or above 65C.

Whilst you draw down and replace power to a battery, you actually have a collection of individual cells that for your convenience have been arranged as a battery to provide you the voltage and capacity you require, but varieties of Lithium Ion batteries are not 'managed' as a battery, but rather as those individual cells.