Lithium iron phosphate — the safest, longest-lasting common lithium chemistry for off-grid. Flat voltage, deep cycling, light weight, and a wide safe temperature range.
Lithium iron phosphate is the safest, longest-lasting common lithium chemistry for off-grid: light, deep-cycling, with a flat voltage and a wide safe temperature range.
It is the default chemistry for modern van, marine and cabin banks — and the reason designs specify a high-AIC main fuse and a lithium charge profile.
Design your van, boat, cabin or RV system in Wattonomy and it designs around LiFePO4 by default — sizing the bank, the Class-T main fuse and the lithium charge profile to match — from the appliances you actually run, sized to the recognized standard for your region. You see it on the wiring diagram, in the sized parts list, and in a plain-English build pack that explains the reasoning behind every choice. No account, no email — about a minute to a complete, validated design.
It is safer and more stable than other lithium chemistries, cycles deeply thousands of times, is light, and holds a flat voltage — ideal for vans, boats and cabins.
It is the most thermally stable common lithium chemistry, but it still needs a BMS and a high-interrupting main fuse because it can deliver huge fault current.
It takes about a minute. No account, no email.