ISDT K4 Dual Port 1~8S 400~600W x 2 AC/DC Smart Charger
We ship worldwide - Same day shipping on all orders placed before 4pm - FREE delivery on UK orders over £99 <1kg*
ISDT is renowned for its ergonomically designed, small, state-of-the-art battery chargers and accessories. The K4 smart charger continues this great pedigree of efficient and user-friendly chargers.
The ISDT K4 is a simple to use, yet powerful, no-nonsense dual input (AC/DC) charger that can charge two battery packs simultaneously. It has the ability to charge 2 x 8S LiPo, LiIon, or LiFe, 7S LiHV, 14S Pb, or 18S NiMh/NiCd battery packs at up to 20A. Also, each channel can operate independently of each other, meaning that two different sizes or different chemistry batteries can be charged at the same time. You can even combine both channels in parallel for synchronous balance charging to achieve even more output power. The max charging current on AC power is 400W per channel, and on DC power it is an incredible 600W per channel. The six programming keys (3 per channel) are simple and intuitive to use in conjunction with the color LCD display screen.
To cater for better cooling, the unit has a carefully designed, and optimized internal structure. This is coupled with a ball-raced fan to promote an active cooling system. Outputs include 2 x XT60 male connectors for charging, 2 x XH-JST 8S balance ports, and a micro USB port for updates. The power input of 10~34V (DC) is connected to the charger via a female XT60 connector, and for AC use a mains power lead with a UK plug supplied.
LiPo Battery Charging Tips:
LiPo Battery Handling & Storage Advice:
Finally, always follow the manufacturer’s safety instructions and charging guidelines for lithium polymer battery packs. These are there for not only the longevity of the battery pack, but also your safety.
All information relating to shipping and delivery is stated here. Should you not find what you are looking for, please contact us.
Shipping costs are calculated once items have been placed in your basket during checkout.
UK Postage: Here at Flying Tech we process orders Monday to Friday and pride ourselves on our quick turnaround of orders. If stocks levels allow, we aim to dispatch orders placed before 4PM the same day with Royal Mail. Our cut off time for courier delivery is earlier; orders must be placed by 1PM for next day delivery with DHL and 1PM for next day delivery with APC. A confirmation email will be sent when your order has been dispatched. If you wish to change your order, please contact us promptly, as we won't be able to make amendments once the order has been shipped.
We are partnered with several delivery companies including Royal Mail, DHL, APC and Parcel Force. If you have a special delivery requirement or would like to arrange a shop collection please contact us. For small low value orders our cheapest delivery service is Royal Mail First Class; this service aims to deliver the next working day including Saturdays and it can be sent recorded for extra peace of mind – please note this is not a guaranteed next day delivery or trackable service.
For a guaranteed next day delivery we recommend Royal Mail Special Delivery or one of our courier delivery options. Royal Mail Special Delivery will arrive by 1PM the next day and for an extra fee can be delivered on Saturdays. APC Overnight offers next day delivery with full tracking and a 2hr time slot pre-delivery text notification. DHL is a good option for larger consignments and remote locations such as Northern Ireland and Isle of Man. All high value orders are fully insured and will likely require a signature on delivery.
FREE shipping in the UK on orders over £99 (this is a signed for service and insured to a maximum of £40). Please note that the offer only applies to orders with a total weight under 1Kg and that a few products are exempt from the offer, such as LiPo batteries.
International Postage: We are based in the UK, but ship to most worldwide destinations. Postage rates are calculated by the weight and shipment location, the price is quoted during the checkout. Low value order can be sent by Air Mail, but are not insured. Higher value, heavy goods will be sent with DHL or an alternative courier. Orders shipped outside the UK may be subject to customs charges. These charges are additional to any delivery costs and will need to be paid by the recipient.
For our international customers who require a rapid delivery we off a DHL Express service. DHL Express offers NEXT DAY delivery to most European destinations* and a very fast delivery for countries further afield, generally 2-3 days. For country specific estimated transit times, please refer this download.
We reserve the right to modify, remove or add to any of these services at any time. We endeavour to ship all items as fast as possible. If you would like an alternative shipping arrangement to be made please contact us.
*Next day delivery is not guaranteed, it's a delivery aim.