What you need to know before you buy and use li-ion battery cells
- Your device
In order to choose the right battery cell to your device, you need to know its technical requirements. The chosen cell must at least comply with this requirements. You must never modify your device and/or make changes to it. It is especially important to pay heed to the cooling of the device (i.e. the ventilation holes). You should purchase your device from a specialist retailer, since fake devices (i.e. clones) could be life endangered due to shabby assembly and low-quality materials.
- The source of your li-ion cells
Buy your li-ion cells only from trustworthy specialist merchants. Cheap cells could indicate faked or old batteries. There is nothing wrong about comparing prices, but large price variance are suspicious.
- Technical specifications
Always make sure that the li-ion cells, which you use, match the energy requirements of the device. The technical specs of the manufacturers are a good basis for the purchase decision. Many manufacturers publishes general frame conditions for the use of li-ion cells, which are however not necessarily aligned with the use of the cells in e-cigarettes. In this case it is recommended to seek advice in professional blogs (for example: mountainprophet.de) or internet-forums (for example: mountainprophet.de/forum), which can help you make the right decision.
- Storing and transporting your li-ion cells
In order to avoid damage to the cells (body and shrink tube), it is always recommended to carry and store your li-ion cells in suitable battery case, carrier or box. Never carry or store li-ion batteries together with sharp and/or metal objects such as keys or coins, without protecting the cells using an appropriate case.
- Damaged li-ion battery cell
A li-ion battery cell is an industrial component, which is actually not intended for the use of private persons. In case your battery fell down, or the protection cover is scratched or damaged (some battery bays have sharp edges), you should not use this battery cell anymore. A battery with dents on it (due to a fall or a hit) should not be used again under any circumstance.
- Heating of li-ion cells during operation
Li-ion batteries warm up during operation. The more they are being stressed (charged or discharged), the more warm they become. The temperature should never exceed 80°C (almost impossible to touch with the fingers). If you notice that your battery cell becomes to warm while charging (in the charger) or discharging (in the device), this is the time to dispose it (read more about disposal of used batteries here >>) and buy a new one.
- Charging correctly
There is a today a large selection of good and safe chargers on the market, which one can use. You should however make sure, that the charger does not overcharge the batteries (higher than 4.25V) and does not charge the batteries too fast (2A charging current for cells of format 18650). We recommend either 5V-chargers (Xtar MC1, MC2, VC2, VC2 Master, VC4 for example), or an external power supplier (Xtar VP2, VP4, ENERpower). Note that these power suppliers are all GS and TÜV certified.