Hi everyone. Purchase a 80Ah LFP battery from amazon. They have come down in price so that they are around 2x the price of lead acid.
I am an engineer so I was skeptical of the claims made about the LFP batteries so I ran several experiments.
80Ah LFP produced 1040 Watt hrs + Weighs 25lbs
I tested 2 group 31 marine 105 Ah deep cycle batteries to compare.
1 battery was 6 years old and the other 1 year old. I take good care of them.
#1 - 6yr old 105 Ah Lead acid = 680 Wh
#2 - 1yr old 105 Ah Lead Acid = 800 Wh.
If you wanted the same capacity from a LFP battery you could use a 60Ah. The 80Ah has a better price point.
Fred
