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!


  • 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)
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

Monday, Jan 31 2022 (6 months 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.