Nitecore UM4 is a QC input available universal intelligent USB four-slot charger compatible with almost all cylindrical rechargeable batteries, thus eliminating the need to own several chargers. The UM4 automatically detects Li-ion, Ni-MH and Ni-Cd batteries, and through manual selection is also capable of charging LiFePO4 batteries. Intelligent charging circuitry selects the optimal charging mode (CC, CV and dV/dt) for a given battery and each of the four microcomputer-controlled charging slots then monitors and charges the battery independently. Furthermore, an integrated digital LCD screen clearly displays charging progress, voltage, current while an intelligent automatic power-off function terminates current when charging is complete. With a total max output of 3,000 mA and a single slot max output of 1,500 mA. With LCD display for real-time charging information, it is equipped with a USB charging port for outdoor.
- Each of the 4 battery slots monitors and charges independently
- Optimized charging design for IMR batteries
- Integrated LCD panel clearly displays charging parameters and progress
- Two conveniently located side buttons allow easy selection of specific battery types and charging parameters
- Intelligent circuitry detects the battery type and status before entering automatic charge mode (CC, CV, dV/dt)
- Automatically detects battery power status and selects the appropriate voltage and charge mode (with the exception of LiFePO4 batteries which require manual selection)
- QC Input Enabling a Total Max Output of 3000mA
- Compatible with LiFePO4 batteries
- Compatible with small capacity batteries
- Automatically stops charging when complete
- Features over-charge prevention to protect batteries
- Features temperature monitoring to prevent overheating
- Made from durable ABS (fire retardant / flame resistant)
- Features reverse polarity protection
- Designed for optimal heat dissipation
- Certified by RoHS, CE, FCC and CEC
DC 5V/2A 9V/2A
4.35V±1% / 4.2V±1% / 3.7V±1% / 1.48V±1%
QC Mode: 1,500mA*1 (MAX), 1,500mA*2 (MAX), 750mA*4 (MAX)
Standard Mode: 1,500mA*1 (MAX), 1,000mA*2 (MAX), 500mA*4 (MAX)
IMR/Li-ion/LiFePO4: 10440, 14500, 14650, 16500, 16340(RCR123), 16650,
17350, 17500, 17650, 17670, 17700, 18350, 18490,
18500, 18650, 18700, 20700, 21700, 22500, 22650,
25500, 26500, 26650, 26700
Ni-MH/Ni-Cd: AA, AAA, AAAA, C, D
Dimensions: 159 mm x 107 mm x 41 mm / 6.26 inch x 4.21 inch x 1.61 inch
Net Weight: 232.8g / 8.21 oz (Charging cable not included)
- 1 x Nitecore UM4 charger (Battery is not include)
- 1 x USB charging cable
- 1 x User manual
The shipping time begins from the date you placed your order. It usually takes 1 to 5 business days to process your order. Once we've processed it, we can then ship it. We'll send you a notification email with shipping and tracking information once it's dispatched. You'll then be able to track your parcel's journey to your front door.
We currently offer two shipping speeds within the most Countries:
- Standard Shipping option which takes about 7-25 business days to arrive and the carrier will be automatically selected based on the shipping address.
Additionally, we offer 3-8 business days Expedited Shipping starting at US$19 and plus additional weight charge is automatically calculated based on each selected product. The final price for both of these options will be given at checkout and is determined by order volume and final destination.
*Receiving time = Processing time + Shipping time (Business days)
- We only ship and deliver from Monday to Friday (Excluding weekends and holidays) and that all orders placed will be arranged to be issued until 3 am ET.
- All delivery times are estimates and Vrigoo is not responsible for delays due to unpredictable factors (weather, delivery carrier factors, customer error, holiday-related delays) or any other unforeseen factors.
- After the item is shipped, you can get tracking information in order details and then follow the guideline to check the shipping status.
For more information about delivery, please view our Shipping Policy.
30-Day Money-Back Guarantee
We offer refunds on unused item(s) in good condition. You have 30 days, from the day you received order, to submit a return and refund request.
When you receive item(s) that is defective, incorrect, or incomplete, please contact us immediately so we can make it right. Once we accept your return request, our customer service will be in touch to start processing your request within 5 working days. Then you can post the item back to us.
If you return the item(s) for personal reasons, the return freight is at your expense. Please note that products must be returned in the original packaging and will not affect the second sale. Once the item arrives back at the warehouse for inspection, the refund process will begin.
A hassle-free exchange is ready if it is in stock. You can exchange your item(s) within 24 hours you placed the order and before your package was shipped out. If your package has been shipped out, we will not accept your replacement request, but you can refuse to accept the package when it arrive.
How do I cancel an order?
For canceling an order which has not been processed, please contact us as soon as possible. Orders whose parcels have already been processed can not be canceled.
For more information, please view our Returns Policy.