Electrolyte Temperature and Available Capacity

When operating in low ambient temperatures the battery's electrolyte temperature falls and available capacity decreases accordingly.
The following diagram shows how to estimate available capacity.

Electrolyte Temperature and Available Capacity
These are guide figures only as other factors can also affect the capacity.

These are guide figures only as other factors can also affect the capacity. Wet batteries should not be discharged below 80% of their rated capacity maintenance free batteries below 60%.