new non sulphating battery from Soneil
It can be used at -40 C 1/3 the cost of Li 80% depth of discharge 1500 cycles https://soneil.com/wp-content/uploads/2018/07/12-EFSL-185.pdf
Forum Discussion
No sulphating? So why does it say recharge immediately after use?
https://soneil.com/product/12-efsn-100/
https://soneil.com/product/12-efsn-100/
