The XTAR VX4 is a multi-chemistry charger for Li-ion, NiMH, LiFePO₄ and 1.5V Li-ion batteries. The charging current (max 3000mA) can be limited in five steps down to 250mA, but only for all four slots together. The actual charging current might also be significantly lower than selected due to the sensitive IR measurement. NiMH batteries are always charged at 500mA regardless of the chosen current.
An additional function is the capacity test, which is used to determine the capacity of the batteries. It also works for 1.5V Li-ion batteries, which makes the VX4 pretty unique right now. However, with a discharge current of only 300mA, the test can take a while. The large display is easy to read, even in sunlight.
Overall, the user interface is straightforward and easy to understand. With the limited set of functions it is often enough to just insert the batteries and wait for the charging to finish. If you can live without the capacity test, the adjustable current limit and the slightly longer slots, the more compact XTAR MX4 would be a good alternative.
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# The full review is available here
[**English** review at BLF](https://budgetlightforum.com/t/224945)
[**German** review at my website](https://www.sammyshp.de/betablog/post/173)
# Summary
The XTAR VX4 is a multi-chemistry charger for Li-ion, NiMH, LiFePO₄ and 1.5V Li-ion batteries. The charging current (max 3000mA) can be limited in five steps down to 250mA, but only for all four slots together. The actual charging current might also be significantly lower than selected due to the sensitive IR measurement. NiMH batteries are always charged at 500mA regardless of the chosen current.
An additional function is the capacity test, which is used to determine the capacity of the batteries. It also works for 1.5V Li-ion batteries, which makes the VX4 pretty unique right now. However, with a discharge current of only 300mA, the test can take a while. The large display is easy to read, even in sunlight.
Overall, the user interface is straightforward and easy to understand. With the limited set of functions it is often enough to just insert the batteries and wait for the charging to finish. If you can live without the capacity test, the adjustable current limit and the slightly longer slots, the more compact XTAR MX4 would be a good alternative.