With the UM4 Li-Ion, Li-Ion IMR, NiMH/NiCd and LiFePO4 batteries can be charged. The Nitecore UM4 charger detects the type of battery, determines the battery status, the charge status of the battery and automatically determines the correct charging procedure. The default charging current is 500mA. Depending on the battery type, this can be increased manually up to 1A and in QC mode up to 1.5A. Deeply discharged Li-Ion batteries can be reactivated in the UM4 (please refer to the operating instructions).
With the UM4 Li-Ion, Li-Ion IMR, NiMH/NiCd and LiFePO4 batteries can be charged. The Nitecore UM4 charger detects the type of battery, determines the battery status, the charge status of the battery and automatically determines the correct charging procedure. The default charging current is 500mA. Depending on the battery type, this can be increased manually up to 1A and in QC mode up to 1.5A. Deeply discharged Li-Ion batteries can be reactivated in the UM4 (please refer to the operating instructions).
There are no live offers for Nitecore UM4 USB Four-slot Battery Charger right now. The all-time low we recorded was $11.62 on 13 Oct 2025. Set a price alert to hear when it's back in stock.
Prices last updated 8 Sept 2026.
Nitecore UM4 USB Four-slot Battery Charger
With the UM4 Li-Ion, Li-Ion IMR, NiMH/NiCd and LiFePO4 batteries can be charged. The Nitecore UM4 charger detects the type of battery, determines the battery status, the charge status of the battery and automatically determines the correct charging procedure. The default charging current is 500mA. Depending on the battery type, this can be increased manually up to 1A and in QC mode up to 1.5A. Deeply discharged Li-Ion batteries can be reactivated in the UM4 (please refer to the operating instructions).
With the UM4 Li-Ion, Li-Ion IMR, NiMH/NiCd and LiFePO4 batteries can be charged. The Nitecore UM4 charger detects the type of battery, determines the battery status, the charge status of the battery and automatically determines the correct charging procedure. The default charging current is 500mA. Depending on the battery type, this can be increased manually up to 1A and in QC mode up to 1.5A. Deeply discharged Li-Ion batteries can be reactivated in the UM4 (please refer to the operating instructions).
Last updated at 09/08/2026 22:02:32
NITECORE UM4 Intelligent USB 4-Slot Battery Charger for Li-Ion, LiFePO4, IMR, Ni-MH/Ni-Cd Batteries
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
NITECORE UM4 Intelligent USB Four Slot Battery Charger
Delivery between 11–16 Sept $13.99
Nitecore UM4 Intelligent USB-A 4-slot Battery Charger for AA , AAA, 18650 ,26500
Delivery between 10–21 Sept $13.25
Nitecore UM4 Four Bay USB Battery Charger
Free delivery
Nitecore UM4 Four Bay USB Battery Charger
Delivery between 11–19 Sept $10
NITECORE INTELLIGENT BATTERY CHARGER USB FOUR SLOT CHARGER
Free delivery
NITECORE INTELLIGENT BATTERY CHARGER USB FOUR SLOT CHARGER
Free delivery
Nitecore UM4 Four Bay USB Battery Charger
Free delivery between 14–22 Sept
Nitecore Um4 Intelligent 4 Slot Usb Charger
Delivery $7.95
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Nitecore UM4 4 X Penlite Charger (AA/AAA) w/ Indicator
Delivery $72.48
originally posted on shopee.ph
Legit product. Charges my batteries and has good UI. Be aware that it is humongous and takes a lot of space.
originally posted on imrbatteries.com
It does a wonderful job of charging batteries and keeps them topped off ! No complaints!
originally posted on imrbatteries.com
Good display rotates charge information for each cell inserted. Tons of room for xx700 batteries, like 6mm extra so no more torn wraps. -1 star for the lack of a wall block for the included micro USB charging cord.
| Supported Battery Chemistry | Li-Ion, Ni-Cd, Ni-MH |
| Charging Voltage | 4.35 VDC; 4.2 VDC; 3.7 VDC; 1.48 VDC |
| Charging Amperage | 500 to 4000 mA |
| Power Input | Micro-B USB |
| DC Input Power | 5 VDC at 2 A |
NITECORE UM4 Intelligent USB 4-Slot Battery Charger for Li-Ion, LiFePO4, IMR, Ni-MH/Ni-Cd Batteries
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
NITECORE UM4 Intelligent USB Four Slot Battery Charger
Delivery between 11–16 Sept $13.99
Nitecore UM4 Intelligent USB-A 4-slot Battery Charger for AA , AAA, 18650 ,26500
Delivery between 10–21 Sept $13.25
Nitecore UM4 Four Bay USB Battery Charger
Free delivery
Nitecore UM4 Four Bay USB Battery Charger
Delivery between 11–19 Sept $10
Legit product. Charges my batteries and has good UI. Be aware that it is humongous and takes a lot of space.
It does a wonderful job of charging batteries and keeps them topped off ! No complaints!
Good display rotates charge information for each cell inserted. Tons of room for xx700 batteries, like 6mm extra so no more torn wraps. -1 star for the lack of a wall block for the included micro USB charging cord.
| Supported Battery Chemistry | Li-Ion, Ni-Cd, Ni-MH |
| Charging Voltage | 4.35 VDC; 4.2 VDC; 3.7 VDC; 1.48 VDC |
| Charging Amperage | 500 to 4000 mA |
| Power Input | Micro-B USB |
| DC Input Power | 5 VDC at 2 A |
