Batteries are classified according to IEC classification standards: LR03 is equal to AAA, but in another standard.

Replace all batteries at the same time. Do not mix old and new batteries. Use batteries from the same brand, type and expiry date too.

Turn off the device and remove the battery immediately. Remove the remaining leakage using a cotton swab. Avoid skin contact at all times.

Each battery has specific characteristics, depending on their chemical composition. Zinc carbon is a cheap battery for basic low-drain devices. Alkaline deliver good, dependable power (usable for any type of device, depending on the alkaline type). Lithium technology is a stable technology for smaller, yet demanding appliances. Zinc Air provide long-lasting, continual power.

Don’t charge an alkaline or zinc-carbon battery, they are not designed to be charged.

Batteries are best stored at room temperature. Extreme heat or cold can significantly reduce battery life.

No. Do not use batteries in water or in vacuum conditions - this will cause them to rust and short-circuit.

Use batteries for their right purpose: insert them correctly, replace them when empty and store them high and dry.

There can be several reasons why the appliance doesn't work. The battery can be wrongly inserted in the battery compartment, there can be a bad connection between the battery and the compartment connection terminal or it is possible the appliance does not work properly.

Always remove batteries from devices you don’t use for longer periods, from devices connected to AC power and when batteries are empty.