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ECOWITT WS90 - 11. Care and Maintenance

ECOWITT WS90
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11. Care and Maintenance
When batteries of different brands or types are used
together, or new and old batteries are used together,
some batteries may be over-discharged due to a
difference in voltage or capacity. This can result in
venting, leakage, and rupture and may cause personal
injury.
Do not mix Alkaline, Lithium, standard, or
rechargeable batteries.
Always purchase the correct size and grade of battery
most suitable for the intended use.
Always replace the whole set of batteries at one time,
taking care not to mix old and new ones, or batteries of
different types.
Clean the battery contacts and also those of the device
prior to battery installation.
Ensure the batteries are installed correctly with regard
to polarity (+ and -).
Remove batteries from products during periods of
non-use. Battery leakage can cause corrosion and
damage to this product.

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