TESTO 310 - Using the product; Mains unit; rechargeable battery; Charging the rechargeable battery

5 Using the product
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5 Using the product
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5.1. Mains unit / rechargeable battery
The rechargeable battery is permanently installed and can
only be changed by a Testo service centre.
The measuring instrument is supplied with a partially
charged rechargeable battery.
> Charge the rechargeable battery fully before using the
measuring instrument.
5.1.1. Charging the rechargeable battery
The rechargeable battery can only be charged at an ambient
temperature of ±0 to +35°C. If the battery has been discharged
completely, the charging time at room temperature is approx.
5-6 hrs.
Charging in the measuring instrument
1. Connect the plug of the mains unit to the mains unit socket on
the measuring instrument.
2. Connect the mains plug of the mains unit to a mains socket.
- The charging process will start. The charge status will be shown
on the display. The charging process will stop automatically
when the battery is fully charged.
Battery care
> Do not fully exhaust the rechargeable battery.
> Only store instrument with battery charged and at low
temperatures, but not below 0°C (best storage conditions with a
charge level of 50-75% = 2 segments, at an ambient
temperature of 10-20°C, recharge completely before use).
> The rechargeable battery life depends on the storage, operating
and ambient conditions. The available useful life of the
rechargeable battery reduces more and more with frequent use.
If the useful life is significantly shortened, the rechargeable
battery should be replaced.