Multiple Rapid Charging / Charging concerns & why I wouldn’t buy a 39kWh Kona Electric

Not my finest video creation for sure. I’ve really disliked making this video from start to end.

The idea was simple, three rapid charges and some quick driving but I wasn’t to know my opinion of the car would dramatically change.

So much of the footage I shot became redundant and Inappropriate once I analysed the data. The car seems to charge slower than I expected and potentially had issues charging from cold. The BMS becomes active at various times without a consistent pattern.

Compared to the 64kwh version the 39kwh is half the car when you consider it’s limited range in worst case scenarios and slower charging performance.

Remember this is my opinion only and I’ve been spoilt with the 64kwh version.

With so much secrecy from Hyundai about what the BMS is actually doing, we simply can’t fully understand the cars abilities in respect to charging and hence it’s sadly easy to draw conclusions from tests such as this. Ideally, such tests would be repeated over multiple times to prove results and again varying parameters to learn more.

The charging time of 57 minutes seemed accurate for the 20% to 80% charge but sadly 6% to 80% wasn’t so swift.

Does the 39kwh Kona have issues charging from cold? Why does the BMS come on when the battery is cold? Why was charging limited to 14kw from cold in my final test? All unanswered I’m afraid.

UK Kona Electric specs:

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DJI Mavic 2 Multiple Battery Charger By RC Geek

RCstyle Compatible 5 in 1 Rapid Battery Charger Smart Multi Battery Intelligent Charging Hub for DJI Mavic 2 Pro/Zoom 3 Batteries, 2 USB Ports

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DJI Mavic 2 Zoom and DJI Mavic 2 Pro

DJI Mavic 2 Pro ND Filters

DJI Mavic 2 Zoom ND Filters

**********These are two highly rated cases for the DJI Mavic 2:
Lykus M1 Water Resistant Travel Backpack for DJI Mavic 2, Mavic Pro, Mavic Pro Platinum, 4-in-1 Backpack/Case/Shoulder Bag/Cross Body Bag

Go Professional Cases Compatible/Replacement for Mavic 2 Pro/Zoom Case (GPC-DJI-MAV-2)

********* Here is the SD card that I use for my Mavic 2 Pro:
SanDisk Extreme Pro microSDHC Memory Card Plus SD Adapter up to 100 MB/s, Class 10, U3, V30, A1-32GB SDSQXCG-032G

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About this video:
In this video Bill from Bill The Drone Reviewer tells us about DJI Mavic 2 Multiple Battery Charger By RC Geek. Bill shows us the DJI Mavic 2 Multiple Battery Charger By RC Geek charge three DJI Mavic 2 batteries and the DJI Mavic 2 Remote, how long it took to charge, and his overall impressions of the charger.

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DJI Mavic Pro Multiple Battery Charger

Buy DJI Mavic Pro and Platinum Charger on Amazon:
The DJI Mavic Pro is an amazing camera drone designed for aerial photography and video. The problem is that you can only charge one battery at a time with the stock DJI Mavic battery charger. But now, with the Mavic Pro 5in1 Battery Charger, you can charge 3 Mavic batteries along with 2 USB devices, including the Mavic Pro transmitter! If you own more than one battery for your DJI Mavic Pro, you should consider getting this reliable, yet inexpensive, multi-battery charger!

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Charging multiple 1s batteries on-the-go – Turnigy Micro-6 & Xiaomi 10000mah – BEST FOR LESS

Charging multiple Li-Po batteries at a time is often a tricky procedure, but running a 1s setup makes everything very convenient and easy.

I am using a Xiaomi 10.000mah power bank and a Turnigy Micro-6 charger, which allow me to charge up to 6 batteries simultaneously and on-the-go.

Get ready for endless flying, wherever you are..
This is BEST FOR LESS: Charging multiple 1s batteries on-the-go with the Turnigy Micro-6 Charger and the Xiaomi 10000mah Power Bank. Let’s go!

*If you like my content and want to support the channel, you can use the affiliate links below. I get a small kickback from the store if you decide to buy something and it costs nothing extra to you.
Thank you in advance!

For details, pricing and availability, you can check the items in the links below:
Xiaomi 10.000mah Power Bank: or
or the newer version, Xiaomi Power Bank 2 10000mah: or
Turnigy Micro-6 Charger: or or
Keweisi USB Meter:

Also here is a link to the Quick Guide: Carrying and Checking 1s lipo batteries (ft. AOK 1-6S High Precision Voltage Checker):

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TUTORIAL: How to Make Simple DIY Multiple 18650 Lithium Cell Charger! (Part 2) – Without TP4056

This is my latest project! I have loads of cells and I want to charge them all quickly. This show you how I made something which can carry and parallel 15 cells into one unit! Each cell is seperate and can be taken out to be used elsewhere – these calls are not soldered up. It costs £1 – £2 to make. You will need some device which allows an output of 4v or so and maybe 5a. For now, I’m using a Variable Power Supply.

ATTENTION: For this design, you must stay with the charger at the start and take out any hot/broken cells. Shorting cells will attempt to draw the full 5a, which is not good!

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DIY multiple camera battery charger. Get rid of that power board.

Step by step video on how to attach three camera battery chargers together in order to clean up the amount of wires needed.


JJRC H31 Camera and Multiple Battery Charger Review

A short review-guide for a compatible camera and a multi-battery charger that work with the JJRC H31

Original ……………………
Alternative 1 …………….
Alternative 2 ……………. //

Charger ……………………


Thrunite MCC-4S Multi Battery Charger

The Thrunite MCC-4S Multi Battery Charger is a great affordable option for charging up to 4 batteries. It even includes an option for charging at twice the normal speed.
Charger + (4) 18650 batteries:


How To Charge Multiple Car Batteries w/ EXO’s XS Power Battery Charger & DUAL Copper Bus Bar Install

User Request: This Is How Charge My Batteries

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Subwoofer Demo Coming Up!


Battery Charging Hub for DJI Phantom 4 | Hands-on Review

The Battery Charging Hub ( for the DJI Phantom 4 ( is supposed to charge up to three intelligent flight batteries at a time. How does it look like, what are it’s pros and cons and does it have any hidden features?

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