1. Increase the maximum charge current from 0.9A to 1.3A, charges much faster especially for large capacity batteries like 850mah.

2. Open the tooling for the case around, no exposed parts any more.

3. Change to a colorful LED screen, each cell current also can be displayed.

4. Add the fan and big heatsink for heat dissipating, the discharging efficiency improves a lot.

5. Add the buzzer to beep when the charging circle finishes.

6. Add the feature of remembering the last current setting, no need to set the current each time.

7. Support 6S battery input.

8. Remove all switches, all operations are through the two buttons, that is much easier
【Storage Charger and Discharger】WhoopStor 3 is the first 1S LiPo charger with storage function. It includes both charging and discharging functions. Just select your target voltage, it will do it for you automatically.
【Colorful LCD Screen, Intuitive Interface】WhoopStor 3 installs high quality LCD screen, the charging status is displayed clearly and the intuitive interface makes the operation very simple.
【Fast Charge Speed】The charge current range is from 0.3A to 1.3A, you can choose different charge current for different size batteries, it is better to charge the battery with 2C rate.
【6 Independent Ports】6 independent charging channels, not necessary to ensure the batteries are all the same voltage and same size. You also can unplug one that's done and plug in another while the others are still charging.
【Multiple Power Input】It supports Type-C, XT60 and DC power input. Type-C used PD and QC protocol that supports fast charge at 9V and 12V, but it not supports regular 5V USB charge.
【Memory Function】WhoopStor 3 added the memory feature of remembering last time settings, no need to set the charge current every time you turn it on.