In this article I want to show you my top picks for brushless whoop LiPo battery chargers. Unfortunately there is no one, best battery charger for all whoop classes, but rather one best charger per cell count.
The optimal brushless whoop charger in my mind would be one where you can can attach 1-3S batteries, six at the same time, each one on a separate channel. The charger would have an internal power supply so it can be powered from the outlet but would also allow to be powered from a bigger LiPo battery.
Each of the channels would have their own current and HV setting. The charger would display the current charging rate, capacity charged and current battery voltage.
Further it would allow to charge/discharge batteries to storage voltage. Unfortunately such a charger does not exist (yet).
Now that you know how my perfect charger would look, you might understand why I picked the following options.
Best 1S LiPo battery charger
In my opinion the best 1S battery charger is the Ultra Power UP-S6AC. It allows six, 1S batteries to be charged at the same time. Each of the batteries is charged on a separate channel, so you can plug in batteries of different charging states and capacities at the same time.
The UP-S6AC supports four of the most popular 1S battery connectors: JST PH2.0, JST RCY, Micro Lossi and JST ZH - for most of us PH2.0 will be enough.
You can adjust the charging current for each channel up to 1A, further you can chose if your batteries are HV (high voltage - charged to 4.35V) or regular LiPo’s (charged to 4.2V).
This battery charger comes with an integrated power supply, so you can simply power it off of mains. Alternatively it also has an XT60 plug, allowing you to charge in the field from a larger battery (up to 4S).
The display shows the charging state - how many mAh have been charged into each of the batteries - and how many Amps each of the battery is currently being charged with.
If you are also using 2S batteries, there is another version of this charger, which only only has 4 channels, but it allows you to also charge 2S batteries from their balance lead.
In my opinion the only downside of this charger ist, that you can not put your batteries into storage mode. My workaround for this is to fly them empty charge them again, closely monitoring them and unplugging them at around 3.8V.
There are also various 1S charging solutions that can be powered from a USB port. I am not a big fan of those: They lack basic settings, like for example setting the charging current and monitoring the charging state. Further you need some kind of USB power supply or power bank to use them. They are okay if you are just starting out and got them with your copter or RTF kit but they are a great first upgrade that will make your life so much easier.
Best 2S LiPo battery charger
2S batteries are a little bit in-between. Unfortunately there is no good 2S only solution, at least none that I know off.
When you also use 1S batteries and want to be able to charge your 2S batteries on the go and from different charging states, I recommend the Ultra Power UP S4AC. As mentioned in the 1S section, this charger has 4 separate channels and allows to charge 1S or 2S batteries from their balance lead.
Unfortunately there is no real, dedicated multi channel 2S charger, if you want to charge six, 2S batteries at once, I highly recommend going with a parallel charging board and a dedicated charger - same as for the 3S batteries.
Best 3S LiPo battery charger
When it comes to 3S, there are no cheap solutions for multi channel chargers. For 3S I suggest getting a parallel charging board and a dedicated charger.
When you know what you a re doing, parallel charging is very safe - I wrote an article about parallel charging which I recommend you read, if you are interested in this method. It allows you to charge multiple batteries with the same specs and same charging level at the same time - in parallel.
There are parallel charging boards that come with XT30 plugs. This parallel charging board in particular allows six, 1-3S batteries to be charged in parallel.
Other than the parallel charging board you will also need a dedicated battery charger. I can highly recommend the ISDT Q6 this battery charger can be powered from your flight packs (up to 6S) or from a dedicated 12-24V power supply.
I am now using the ISDT Q6 for almost two years without any issues. Very reliable and good value for money. I would highly recommend this charger for anyone starting out with the hobby.
The only downside is, that the power supply is not included, so you need to make sure to get one that can output enough power to fulfill your charging needs. For example this 24V, 400W one.
The nice thing about this charger is, it’s flexibility - you can use it stationary, powered from mains, or on the go powered from a flight pack or your car battery.
If you are looking for something stationary with internal power supply, I would recommend the ISDT D2, a dual channel LiPo battery charger with built in power supply. It allows you to charge two completely different batteries or even run two completely different parallel charging board setups. For example you could charge six 2S batteries on one channel and six, 3S batteries on the second channel, both with their own parallel charging boards.
This is definitely the most expensive, but also most versatile solution. The dual channel ISDT D2 charger will accompany you for a long time on your endeavors in the RC hobby.
Chris is a Vienna based software developer. In his spare time he enjoys reviewing tech gear, ripping quads of all sizes and making stuff.
Learn more about Chris, the gear he uses and follom him on social media:
Also check out
Battery SpecsBattery Specs
Parallel ChargingParallel Charging
Serial ChargingSerial Charging
Serial charging 2SSerial charging 2S