EV-PEAK CQ3 is a versatile charger featuring 4 independent output channels – equivalent to four chargers in one. It can charge up to 4 batteries simultaneously, with each channel delivering up to 100W of power. It supports a wide variety of battery chemistries and displays real‑time charging voltage, current, time, capacity, and more.
The CQ3 comes with an AC/DC dual‑input built‑in switching power supply. You can connect the AC power cord directly to a wall outlet (global 110V or 220V compatible) or use an 11‑18V DC input (e.g., a 12V car battery) for outdoor operation. Its one‑piece aluminium alloy housing is fire‑resistant, drop‑resistant, and heat‑tolerant. Large external aluminium heatsinks and a powerful cooling fan efficiently dissipate heat, keeping the charger at a safe temperature.
The CQ3 is widely used for RC aircraft, FPV drones, aerial photography drones, RC cars, RC boats, agricultural drones, and more.
4 independent channels – charge up to 4 different or identical batteries at once Built‑in independent balancer – no external balancer needed Stores up to 20 charge/discharge memory profiles Large LCD shows: battery mode, charge mode, cell count, capacity, current, elapsed time, charged capacity, and more Built‑in multi‑protection: over‑current, over‑voltage, leakage, short‑circuit, over‑temperature, and reverse‑polarity protection
Caution: Before connecting the power cord, check the AC voltage selector switch to ensure it matches your local mains voltage (110V or 220V). For DC input outdoors, the voltage range is 11‑18V.
Q1: Can I charge different battery types at the same time?
Yes. The 4 channels are completely independent, so you can simultaneously charge batteries with different chemistries – LiPo, LiHV, LiFe, LiIon, NiMH, NiCd, and Pb. No need to swap batteries constantly; it streamlines your charging workflow.
Q2: How do I power it when I'm on the go?
The CQ3 supports both AC and DC inputs. Indoors, plug into a standard AC outlet (110V or 220V worldwide). Outdoors or in a vehicle, use the 11‑18V DC input – just connect to a 12V car battery.
Q3: How long does it take to charge a 6S 5000mAh drone battery?
Each channel delivers up to 100W and 10A. For a 6S battery (nominal ~22.2V), 100W gives about 5A charging current. A 5000mAh pack would take roughly 1 hour to fully charge. Actual time depends on battery capacity and the set charging current.
Q4: How can I check individual cell voltages for balance?
The CQ3 has a built‑in Li‑Po cell voltage monitor. The LCD screen displays each cell's voltage (e.g., 1:4.17 4.18 4.17) in real time. If any cell voltage is abnormal during charging, the system will show an error and automatically terminate charging.
Q5: Can I stop charging halfway?
Yes. Each channel has its own independent control button, so you can stop the charging or discharging process on any channel at any time.
Q6: What power cord options are available for different countries?
The CQ3 comes in color variants (Blue / Red) and you can select the power cord type (US / EU / UK) to match your local plug standard when ordering.
Q7: Why does the charger show an "Underpower" warning?
When the load demand exceeds the current capacity of the connected power source, the charger will sound an alarm and display "Underpower", then cut off output. Check that your power supply can provide sufficient wattage, or reduce the charging current setting.
