iSDT K4 Smart AC/DC Lithium Battery Charger (8S/20A/600W DC, 400W AC)

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iSDT K4 Smart AC/DC Lithium Battery Charger (8S/20A/600W DC, 400W AC)
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Price: $239.99

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The iSDT line of chargers has proven to become a staple within the R/C community, meeting a wide variety of charging requirements, while doing so at a budget friendly price. The K4 is no different, delivering ample performance for most, a wide feature set, and simplicity that you come to expect from iSDT. 

The K4 duo charger can charge two batteries at once, and features both AC or DC input, so you can take it anywhere (or no where) to charge a wide type of R/C batteries! It's AC (100-240V) performance is healthy, delivering up to 400W of total charging power. When connected to DC (10-34V), this charger steps up a bit more, and can push up to 600W at each port to power your batteries!

 
Features:

  • BattAir Interconnection Technology (with compatible BattAir supported batteries)
  • Dual Output Charging
  • AC/DC Input
  • Up to 400W AC output (total)
  • Up to 600W DC output (each channel)
Specifications:
Input voltage: 
AC: 100-240V
DC: 10-34V
Output voltage: 1-34V
Max. input current: 45A
Charging current: 0.2-20A x2
Discharging current: 0.2-3.0A x2
Balance current: 1.5A/Cell Max
Max. discharging power: 30W x2
Battery Compatibility: LiFe/Lilon/LiPo 1-8S, LiHv 1-7S, Pb 1-14S, NiMH 1-18S
Output interface: XT60
Input interface: XT90
Working temperature: 0-40 Celsius
Storage temperature: -20-60 Celsius
Dimension: 176-183-57mm
Weight: 1230g

This product was added to our catalog on November 26, 2021

parker whitmire
Monday, Jan 31 2022 (about 2 years ago)
iSDT K4 Smart AC/DC Lithium Battery Charger (8S/20A/600W DC, 400W AC)
Amazing charger that is incredibly simple to use. ease of use is like no other, it has to be one of the most powerful chargers that can run off AC. Also, the capability to use DC is awesome.
Brian A Funk
Verified Owner
Thursday, Jun 15 2023 (9 months ago)
iSDT K4 Smart AC/DC Lithium Battery Charger (8S/20A/600W DC, 400W AC)
Really good charger and it's not as finicky as other chargers especially Traxxas.
Griffin
Verified Owner
Wednesday, Jan 25 2023 (about a year ago)
iSDT K4 Smart AC/DC Lithium Battery Charger (8S/20A/600W DC, 400W AC)
Had it for a couple months now and been quite happy with it. Got it because of the 1.5a balance current, realtime resistance meter, and 30w discharge. Charges 2s race packs at the track quickly and quietly. For a casual racer, beats hauling around a power supply, charger, and stand around.
Adam Hooker
Verified Owner
Friday, Jun 16 2023 (9 months ago)
iSDT K4 Smart AC/DC Lithium Battery Charger (8S/20A/600W DC, 400W AC)
4 out of 5 stars because nothing is perfect. If you don't have the money for the K4 I suggest going with a K2. So far I can't get either to work with ISDT go. It only works with ISDT link.
Mike H.
Verified Owner
Wednesday, Sep 28 2022 (about a year ago)
iSDT K4 Smart AC/DC Lithium Battery Charger (8S/20A/600W DC, 400W AC)
Quality construction works great. I like that is has Bluetooth, the variable fan speed is nice and it charges way faster then my other chargers.