The Nitecore D4 Charger can charge an array of battery types, while displaying the charge progress on an easy-to-read LCD panel.
The Nitecore D4 Charger is great because it can automatically detect and charge Li-ion, LiFePO4, Ni-MH, and Ni-Cd (AA, AAA, AAAA, and C) batteries. This device can charge up to four batteries at a time, and the large LCD screen displays the progress of the charge for each of the batteries using a five-bar indicator.
For specific batteries, you can press the Mode button on the side to get more detailed charging progress and parameter information, such as charging time, current, and voltage.
When the charge is complete, the "Chg. Finish" indicator comes on and the D4 automatically stops charging, an important safety feature. The bundle comes with the charger, a wall plug, a car adapter, and a box that fits two 18650 batteries.
The reviewer at Vaping Cheap already owned the Nitecore i2 and i4 Intellichargers and was happy with them. But, she found the features of the D4 blew the other two out of the water.
More than 1,250 Amazon buyers posted five-star reviews of the Nitecore D4 Charger. Many of the reviewers use the D4 for charging 18650 batteries for vaporizers. One buyer notes that it took him about 4.5 hours to charge three 18650s at the same time. He liked that when the charging cycle is complete, the charger stops applying power. This reduces the potential for a fire.
Other buyers appreciated that the display tracked how long batteries have been charging. The most common complaint was that recharging slowed when there were four batteries charging.
Pros: Large display, charges a broad range of battery types, automatic battery detection
Cons: Only displays the progress of one battery at a time, charge time increases when charging four batteries
Buy the Nitecore D4 Charger on Amazon for $37.99