Winter storage or solar for 2 T-105's
Hey all, I know this has probably been asked and answered many times, but is it more advisable to store 2 T-105's inside on a trickle charger or leave them in the trailer which has solar charging over...
Forum Discussion
Almot wrote:
Do you math, try to estimate how much charge it will lose over winter. It will not be -40C all the winter. From top of my head, with temps consistently below 25C you will lose less then 30% of charge in 3 months. How bad is 30% discharge dragging for several weeks (i.e. slowly dropping from 0 to 30% over 3 months)? Don't know. Let chemistry gurus here chime in.
At least around here, the temperatures are cold enough that it would be considerably less than 30% self-discharge over the winter. A rule of thumb is that battery self-discharge doubles for a 10C increase in temperature, and conversely halves for a 10C decrease in temperature. Assuming a 5C winter average temperature (which sounds not too unrealistic, perhaps a bit warm), I'd lose something like 7-10% over the winter.
