Re: Cold Weather Battery Storage/Charging
I have gotten a remarkable 11 years out of my 48v battery pack with my Powerdrive I charger hooked up full time every winter (Calgary, Canada) without problems - temperatures have been as low as 30 below. To be fair the batteries have just barely made 11 years; they are definitely showing reduced capacity now. I always left the batteries in the cart, but only after a rigorous flushing of the compartment with baking soda/water before storage - and checking the battery cables are snug & clean before storing.
My winter routine was fairly simple; about once a month I would pull the charger plug, check the water (never did have to add any) and plug it back in for an "equalize charge". I would always check the following morning to make sure the charger had stopped. Then in spring before my first round of golf - two equalize charges over two days before heading out. Simple, but its worked - no frozen batteries and never stranded on the golf course due to "winter battery issues".
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