Work Light, 2500LM Bright LED Work Lights, 5200mAh Rechargeable Magnetic Underhood Work Light Bar with Hooks, Cordless Portable Work Lights for Mechanics for Car Repairing/Garage/Workshop/Emergency

Ensures Maximum Durability The battery is jointly offered Over-charge and Over-discharge Protection by the board inside the battery and the power board, ensuring safety and a long lifespan.

Battery Board Protection: When the battery charges up to 100%, the protection board auto disconnects charging.When the battery is used down to 10%, the protection board auto disconnects discharging.

Power Board Protection: If the battery power is lower than 10%, plug in and the battery will be pre-charged with a small current.When it exceeds 10%, it will adopt a constant current to charge the battery.

When it is close to 95%, the charging current will gradually decrease and enter constant voltage mode for charging until the battery reaches 100%.

The discharge current is constant till the end, so both two levels' brightness won't dim as the battery runs low.

Full Charging Time: 4-4.5Hrs, until the four indicators are solid and not blinking.

After a full charge, the work light lasts for 2.2Hrs in high brightness and 5.5 Hrs in low brightness.