Nitecore Digicharger D2 Professional Charger Series Review
The Nitecore Digicharger D2 Professional Charger Series is a two-bay smart charger with an LCD readout of each battery’s voltage, charging current and charging time. It charges Li-ion, IMR, LiFePO4, Ni-MH and Ni-Cd batteries, including 18650s and 26650s, at up to 500mA per bay, and runs on AC or 12V DC. See more from Nitecore or browse all battery chargers.
Digicharger D2 Highlights
LCD Readout
Five bars show each battery’s charge level. MODE switches the readout between voltage, charging current and elapsed time, and SLOT picks the bay.
Automatic Charging
Each bay checks its battery, picks the voltage and charge mode (CC, CV or dV/dt) and stops when it’s full. LiFePO4 is the exception: you select it by hand.
LOW Mode
For batteries under 750mAh, such as 16340s and AAAs, LOW mode charges at a lower current. Select a bay with SLOT, then hold MODE until LOW shows.
Built-In Protection
The D2 checks each battery at low current for 6 seconds before charging. Nitecore lists over-charge prevention, temperature monitoring, reverse polarity protection and a 20-hour cutoff for each bay.
Digicharger D2 Specs
Charging
- Bays: 2
- Batteries: Li-ion, IMR, LiFePO4, Ni-MH and Ni-Cd
- Charge voltage: 4.2V, 3.7V or 1.48V
- Charge current: 500mA per bay
- Charging modes: CC, CV and dV/dt, chosen automatically (LiFePO4 by hand)
Battery Sizes
- Li-ion, IMR, LiFePO4: 10440, 14500, 16340 (RCR123), 17500, 17670, 18350, 18490, 18650, 22650 and 26650
- Ni-MH, Ni-Cd: AA, AAA, AAAA and C
D2 Charger
- Input: AC 100–240V, 50/60Hz, or DC 12V 1A
- Display: LCD readout of charge bars, voltage, current and charging time
- Buttons: MODE and SLOT, on the side
- Protection: over-charge prevention, temperature monitoring, reverse polarity and a 20-hour cutoff
- Size: 143 × 74 × 36mm
- Weight: 168g without batteries or cord
- Body: fire-retardant ABS
Batteries
Charge only rechargeable Li-ion, IMR, LiFePO4, Ni-MH or Ni-Cd batteries, and don’t leave batteries charging unattended.
How to Use the Digicharger D2
- Plug it in: connect the AC cord from the box, or a 12V DC car adapter (sold separately).
- Load the batteries: match each battery’s ends to the + and − marks. The D2 checks it for 6 seconds, then starts charging.
- Set LiFePO4 if needed: for a LiFePO4 battery, hold MODE for more than 2 seconds right after the check, until LiFePO4 shows.
- Read the screen: press SLOT to pick a bay and MODE to switch between voltage, current and time. Chg.Finish shows when the battery is full.
Who the Digicharger D2 Is For
The Nitecore D2 suits vapers who want to see each battery’s voltage and charging time in a two-bay charger. It charges at 500mA per bay and doesn’t take 21700s, while the New i2 charges one big 18650 battery at 1A and takes flat-top 21700s.
Good to know: It isn’t listed for 20700 or 21700 batteries, and Nitecore doesn’t recommend the D2 for over-discharged (zero volt) unprotected Li-ion batteries.
What’s in the Digicharger D2 Box
- Nitecore D2 charger
- AC power cord
- User manual



