• Ensure all batteries operating in a series-based connection are not overcharged.
• Ensure all batteries operating in a series-based connection are not excessively discharged.
• Always charge batteries using the correct voltage.
• Recharge capacity should be 1.1–1.15 times the discharge capacity.
• Temperature effect on cycle charge voltage: −5 mV per degree per cell.
• Batteries must always be kept upright and never placed on their side.

Factors Affecting Battery Life:

• Depth of discharge
• Temperature
• Recharge rate