

⚡ Charge smarter, faster, safer — power your passion with ISDT K4!
The ISDT K4 is a professional-grade smart battery charger and discharger supporting 1-8S LiPo, LiFe, LiIon, LiHv, Pb, and NiMH batteries. Featuring dual AC/DC input modes with up to 600W charging power per port, a vibrant 2.8" IPS LCD for clear monitoring, and advanced safety protections, it’s engineered for high performance and reliability. USB connectivity enables firmware updates and device charging, making it a versatile powerhouse for RC enthusiasts and pros alike.



































| ASIN | B09CPXP5FD |
| Best Sellers Rank | #296,939 in Toys & Games ( See Top 100 in Toys & Games ) #738 in RC Battery Chargers |
| Customer Reviews | 4.4 4.4 out of 5 stars (69) |
| Date First Available | August 16, 2021 |
| Item Weight | 1.54 pounds |
| Manufacturer | ISDT |
| Product Dimensions | 2.52 x 5.31 x 5.59 inches |
S**N
Best charger I've ever used. I love it.
I've been an RC enthusiast since the late 1970s. So as you can imagine I have owned a lot of battery chargers. This one is the best I've ever owned. It's powerful, easy to operate, reliable and it can do lots of things. I like that it can do up to 8s lipo packs. Also it has a "destroy" feature for old lipo packs, and it has protections so it would be difficult to accidentally destroy good packs that you don't want to destroy. now for the cons. I wish the usb charger would put out more power. It is a weak usb charger in my opinion. Also, I wish it had an on-off switch so I wouldn't have to unplug it to turn it off. Also, its power output is through xt60 connectors. I wish it had banana plug outputs since that is what all my other charge cables fit. So, there things about it that could be better, but over all, I think it is fantastic.
M**N
Good but bright
Good charger but a little bright but easy fix
K**R
Great Charger for charging 2 x 4s 11000mAh simultaneously!
Loving this charger so far. Able to charge 2 of our Gens Ace 4s 11000mAh batteries simultaneously at 1C, on the AC power source, no problem. Discharging/storage mode works well enough too. I don't really care about the lack of Bluetooth connectivity because I am using the ISDT BattAir Plugin dongles for each battery. So far, so good on those too. Instead of using the box it came with for protective storage, I found a case that works really well. Fits everything perfectly: "Luxtude Electronics Organizer Travel Case" (medium) https://www.amazon.com/dp/B09MW3CNN1?ref=ppx_yo2ov_dt_b_product_details&th=1
A**X
Bluetooth works!
Need to download isdt link app not the isdt go as shown in manual. I received a previously used unit so monies a star.
D**D
Outstanding
This is BY FAR the best charger I've ever owned. I bought it to primarily charge 8s for my for freestyle quads and can't believe how fast and efficient this charger is. It even has a destroy mode for bad batteries. I plan on buying two more for my charging center. By all means spend the extra and buy this excellent piece of equipment.
A**R
Decent charger.
This is a good charger for most people's needs. It's well built and super easy to use and has a good amount of power. I must say I'm a little disappointed that you cannot parallel charge unless you have a DC power supply. And for my needs, I wish it had a little more current capability on the individual channels. You can only charge at 20 amps per channel regardless of using a big beefy power supply or not. And parallel charging using a big power supply. You will only get up to 35 amps charging a 2s battery pack. I race competitive stock racing at a very high level so this charger would really suit me much better if it would do at least 30 amps per channel. But alas, that is not the case so I will probably end up selling mine and moving to a different charger. And by parallel charging what I'm talking about is using both channels combined into one for a higher charge rate. I just feel for the money that this charger should have a little bit more power output. Other than that it's pretty nice.
N**K
Company does not stand by their product
I used this charger maybe 10 times over the last year. I bought it for my sons toys and some lipo charging projects that I never got around to. I went to use it a few months ago and it just says battery connection error. Does not charge anything. I reached out to the ISDT customer service team and they provided no support and I have been going back and forth with them for months now. They keep asking for more information about my purchase (which has been provided) rather than helping me with the device. ISDT did not help me with this product so I finally decided to let other people know to avoid this company. Ended up with a $260 paper weight.
T**E
Thumbs up
Works perfectly
T**Y
One of the fastest A/C chargers I have ever used. It will charge a battery at 20A continuous and will do two batteries at 12.2A per channel which basically will change two 10,000mah batteries in 30min. Don't waste time and money on cheaper chargers you're just wasting time waiting an hour charging batteries that could be charged in minutes.
A**R
Got mine today. works perfect, bluetooth works with ISD LINK app To connect the Bluetooth for the first time, phone has to be really close to the charger
Trustpilot
2 months ago
3 weeks ago