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Charging lithium in the cold

Only above the battery maker's minimum charging temperature, unless the battery has a built-in heater that warms it first. 11 of the 12 batteries we list publish a minimum charging temperature, and 5 have a heater maker spec. Data updated .

How the check works

The planner compares the coldest temperature you expect with the maker's minimum charging temperature. At or above it: works. Below it with a heater: works, tight, because the heater needs power and the maker sets when it runs. Below it with no heater: no, and the planner counts no charging. No published minimum: not published. Heater power draw is rarely published, so it is not added to your loads.

BatteryMin charge tempHeater
Battle Born BB10012 100Ah 12V-3.9 °Cno
Battle Born BB10012H 100Ah 12V Heated-3.9 °Cyes
Epoch 12V 100Ah Group 240 °Cno
Epoch 12V 105Ah Heated Bluetooth (Essential)-20 °Cyes
Epoch 12V 300Ah Heated Bluetooth Group 31-20 °Cyes
Epoch 12V 460Ah V2 Elite (heated)-30 °Cyes
LiTime 12V 100Ah LiFePO40 °Cno
LiTime 12V 320Ah Mini Bluetooth0 °Cno
Redodo 12V 100Ah Ultra Mini Bluetooth (Group 22NF)0 °CNot published by the maker
Redodo 12V 200Ah Plus0 °CNot published by the maker
SOK SK12V100PC 100Ah 12V (Bluetooth)Not published by the makerNot published by the maker
SOK SK12V206H 206Ah 12V (heated, Bluetooth)-20 °Cyes

For the coldest month at a place, the planner uses NOAA 1991–2020 normals; see methodology.

Sources