Looking to reduce weight a bit, I found some Lithium Iron Phosphate batteries with high CCA ratings. The difference in weight between them and my current battery is about 35lb. They can handle being charged by automotive alternators and temperatures down to -30C. The chemistry is safe and the cells are balanced.
Reasons for this option:
-35 lb
no extra weight from battery box and wiring
cost is about the same as some expensive lead batteries
provides low voltage kill switch - battery never dies
battery died while I was away
I'm trying to find out if there are potential problems with this setup, so that I can resolve them before use. The batteries have relatively low Ah ratings, but don't lose Voltage when drained like a lead acid battery.
I haven't seen anything on most car forums about lithium starting batteries, so I'll be testing it in the garage over the winter and posting my results.
Source:
http://store.starkpower.com/-ULTRA-START-Voltage-Cut-off-and-Cell-Balancer_c_28.html
Reasons for this option:
-35 lb
no extra weight from battery box and wiring
cost is about the same as some expensive lead batteries
provides low voltage kill switch - battery never dies
battery died while I was away
I'm trying to find out if there are potential problems with this setup, so that I can resolve them before use. The batteries have relatively low Ah ratings, but don't lose Voltage when drained like a lead acid battery.
I haven't seen anything on most car forums about lithium starting batteries, so I'll be testing it in the garage over the winter and posting my results.
Source:
http://store.starkpower.com/-ULTRA-START-Voltage-Cut-off-and-Cell-Balancer_c_28.html