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SkyRC BD250 250W 35A Battery Discharger & Analyser 2-8S LiPo

SkyRC BD250 250W 35A Battery Discharger & Analyser 2-8S LiPo

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SkyRc - Battery Chargers & Power Supplies
PDF icon Manual978.52 KB

Upgraded from BD200, the BD250 now offers a maximum of 250 Watts/35 Amps to discharge your batteries even faster!

To prolong the health of RC batteries, you need to balance charge them correctly and discharge them properly too. That means not leaving unused batteries fully charged, but discharging them to their storage voltage. That is where this device comes in handy. The BD250 is powerful battery discharging device. While most good battery chargers have a discharge function, they are more suited to charging batteries so their discharge rates tend to be just a couple of amps at best; anymore and they would overheat. If you are using high capacity, high voltage batteries this means discharging can take forever. Not so with the BD250, with its high-performance cooling system and MOSFETS from the well-known IXYS, it can discharge a battery at up to 35 amps or 250 watts continuously, saving you time and not putting stress on the electronics of your charger. Now you have no excuse for not storage charging your LiPo battieries!

The BD250 is great at discharging batteries, but it’s equally a really useful bit of test equipment for measuring battery capacity and running load tests. It can be control via its rotary dial, or through a PC application. If you operate it via a computer, you can graphically log the discharge curve of the battery and export the battery voltage values at 30 second intervals (for the first six minutes) - the slower the voltage reduces during discharge, the better the battery performance. This can allow you to do useful things like helping you to compare performance and health of different batteries.

The discharger is compatible with any battery chemistry down to a minimum voltage of 5.4v and up to 35volts - which is equivalent to an 8S LiPo. The unit is also self-powered from your battery, so you can use it anywhere.

The BD250 is ruggedly built and uses XT60 connector for battery connection. It is small with a high performance cooling system. A digital LED screen indicates battery voltage, discharged capacity and discharge current. 


  • Simple and intuitive operation via rotary dial.
  • Digital LED displays shows real time battery voltage, discharged mAH count and discharge current.
  • Compatible with LiPo, LiHV, LiFe, NiCd, NiMH& Pb batteries.
  • Compatible with PC software to graphically log battery discharge curves.

IMPORTANT: Never discharge batteries unattended! Constant supervision is required as batteries can be dangerous when mishandled. We recommend discharging your batteries inside a protective charging bag.

  • Discharge Voltage Range: 5.40-35.00V
  • Low Voltage Alert: <5.2V
  • High Voltage Alert: >35V
  • Max. Discharge Power: 250W
  • Discharge Current Range: 0.01A-35.00A
  • Current Consumption in Sleep Mode: <100uA
  • Standby Current: ≤100mA
  • Current Display Accuracy: 0.01-10.00A ±60mA / 10.00-35.00A ±3%
  • Voltage Display Accuracy: 5.4-10V <80mV / 10-20V <120mV / 20-35V <160mV
  • Capacity Display Accuracy: ±1%
  • Application: Suitable for 2-8S LiPo/LiFe/LiHV, 6-30S NiMH/NiCd and 6-32V Pb Battery.


  • 1x SkyRC BD250 250W 35A Battery Discharger & Analyzer
  • 1X Discharging cable with XT60 connector
  • 1X Fuse
  • 1X Manual
ISDT FD-200 200W Smart Battery Discharger (2-8S LiPo)
ISDT FD-200 200W Smart Battery Discharger (2-8S LiPo)

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Sorry, we don't currently have any product related advice for this item. For general tips, tutorials and help please check out our Multirotor Beginner's Guide. Alternatively feel free to ask us a question.

UK Express Shipping - Next Day Delivery on orders placed before 4pm

COVID-19: We are still shipping out orders daily, but have changed our same day shipping cut-off time to 1PM to help cope with demand. If an order is placed after 1PM we will still do our best to ship same day as our daily postal collection is around 4:15.

Please be aware that deliveries with Royal Mail are taking longer to get through. At the moment we are finding it can range from next day to even up to two weeks, with 3-5 days being typical. So if you choose Royal Mail as a shipping method please be patient, shipments aren’t going missing they are just taking a while to get through the postal service. For fast deliveries we recommend choosing DHL.

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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.

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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.

Flying Tech International Shipping with DHL Express

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.

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