14. Recharging the Battery
The symbol flashes when the battery drops below 5.60 volts. The
battery should be recharged at this point. If the battery is not recharged,
the WP-81 will switch itself off when the battery drops below 5.00 volts.
To recharge the battery…
1. Plug the battery charger, solar panel, or car cigarette lighter adaptor
into the Charger/RS232 socket. DO NOT plug into the Conductivity
/ TDS socket, as this will damage the WP-81.
2. Charge for approximately 8 hours for full capacity. The WP-81 has
special circuitry to prevent overcharging, so the charger can be used
continuously.
To ensure optimum battery life and capacity, the WP-81 should only be
charged once the symbol starts to flash.
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