"Frank Dinger" wrote in message
news:EAo%b.20992$ft.6377@newsfe1-win...
One thing to keep in mind is that battery voltage changes with
temperature, and any float or trickle charger that doesn't take this
into account can shorten a battery's life considerably. So if you want
to get the longest life from your battery, you should make sure the
charger is properly temperature compensated.
=======================================
Roy , If the lead acid battery charging current is limited to 0.1C
,(example
a 15Ah sealed battery is charged at max 13.8 V with a current not
exceeding
1.5A) is temperature compensation then still a necessity to optimise the
battery's (usable) life ?
And if it is, in which temperature range ? I have not found this info
through Web based tutorials.
I am very interested in this topic since I charge a number of batteries
(some non- sealed some sealed) by means of a (150 W max)wind generator
and
2 pcs 64Wpeak solar panel.

TIA for any advice

Frank GM0CSZ / KN6WH
==========================================
I should have added to the above that my 'renewable energy' charging voltage
will never exceed 13.8 V.
If the batteries are charged to this voltage level any energy generated by
wind generator and/or solar panels will be 'dumped ' via a number of car
headlight bulbs, by means of a simple opamp/ transistor circuit driving a
number of pass transistors.

Frank GM0CSZ / KN6WH