Originally Posted by OceanPlanet
We have been using Super B starting batteries for starting/power applications. Have been good and very lightweight however the chemistry is low density in Ah's. Which would be an issue if you needed to run a windlass for an extended time. We'll soon be announcing new Li batts with higher energy density and with internal circuitry that can handle starting/windlass currents yet still protect the battery.
Bruce that's great news, I've been very very happy with the service you have provided so far.
The Genasun batteries are way way expensive.
I think Mainesail's explanation on an external connector makes a lot of sense. It seems to me that there are quite a few changes that would need to be made if we switched over to lithium at some point.
I am wondering if someone can answer a question regarding charging
How much actual benefit - in terms of reduction in solar/wind charge time - can one expect from a lithium vs. a lead acid? Sometimes we don't get a full charge on a perfectly sunny day using our lead acid batteries - in the winter there is just not enough time in the day to complete charging
. Also, "full voltage" on the Trojans are much higher than that of other batteries, so it takes them longer to get there than other batteries... or am I misunderstanding how that works?
What I am getting at is this... our fridge is old. The cost of us tearing out the old fridge and building a new fridge with more insulation
is in the thousands of dollars, basically in the range of the same cost of just buying
a lithium system. Obviously there are benefits to both but what is the best bang for the buck when costs are the same - increasing storage
and reducing charge time, or reducing consumption
? In our case, we MAY be able to reduce our fridge consumption
in half - to maybe 60 amp/hours a day vs. 120.
But increasing our usable storage
capacity maybe INCREASE our capacity by 120 amp hours, providing us a 60 amp/hour windfall for the same price