NEC 790 manual Getting Started

Note Before using the system for the first time, charge the MobilePro continuously for 6-10 hours to fully charge the main and backup batteries. Allow the 6-10 hours to pass even if the indicator light changes from amber to green before the 6-10 hours have passed.

To protect your data, do not use the system until the backup battery is fully charged. Recharge the battery whenever the battery charging LED lights amber.

You must repeat this full 10-hour charge cycle only if the backup battery becomes fully discharged.

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