Four separate charging slots allow you to charge 1–4 batteries at the same time. Each channel is controlled independently, so you can combine different types and sizes of supported cells as needed.
For Li-ion cells it uses a three-stage TC/CC/CV algorithm, which helps keep the cell in good condition and ends charging at the right time. For Ni-MH it uses 0ΔV and -ΔV detection.
The charger is powered from any USB charger (2 A recommended) and is equipped with protections: short-circuit, overheating and reverse polarity. Thanks to external power, during charging the cell temperature may increase by a maximum of approximately 15 °C (according to the manufacturer’s description).
XTAR is a renowned manufacturer of quality chargers and battery accessories. The MC4S model hides a fully processor-controlled charger in a small body with 4 separate slots, so you can charge 1 to 4 cells at the same time and each channel works independently. The charger is powered via USB (recommended 2 A source), which contributes to convenient use at home and on the go.
For Li-ion cells, the MC4S uses the professional TC/CC/CV algorithm and for Ni-MH the 0ΔV and -ΔV method. It supports a wide range of sizes (including AAA/AA and many cylindrical Li-ion formats). The charger can also reactivate deeply discharged cells, including cells with 0 V voltage, which many common chargers cannot handle.
TC/CC/CV charging process (Li-ion):
The package includes a USB cable. Note: batteries with voltage 4.1 V and higher may be evaluated by the charger as charged; to top up to maximum, insert the battery into the charger before connecting power. When cells are left in the charger, natural self-discharge occurs and charging will start again after the voltage drops below 4.1 V.
