$28.99
Availability: 4 In Stock
Sku: STX-170054-2



What does "JB" stand for? Joshua Bardwell of course!

Bardwell 4S Parallel Charging Board 2.0 Updated

Now even more improvements by adding color changing paint rather than tape for a cleaner look, and a power switch for the LCD voltage meter to help avoid over discharging if accidentally left unattended.

A while back, Joshua Bardwell came to us with a need for an improved parallel board that allowed him to charge more batteries than he was currently able to. However, as with the majority of most multirotor and drone pilots, he only needed 4S capability. A few drawings were sketched up to make the most of the available space, samples were made, testing ensued, and what we have today is the STRIX 4S Parallel Charging board that allows for up to 10 4s packs to be charged at once!

2.0 Features

  1. Layout makes it super-easy to plug 10 batteries in at the same time. 
  2. Poly fuses were included between all balance ports to help when accidentally plugging the balance port in backward or incorrectly.
    1. Fuses automatically reset
    2. NEW color changing indicator to show when a fuse has tripped! (sometimes you can plug something in wrong and there's no spark, so it's easy to see that you messed up now!)
  3. Overall current rating of 70A. 
  4. Green LCD with Black connectors. Charge in style!

This board's main power lead comes equipped with an XT60 connector, which is handy for chargers like ISDT. It also comes with an adapter to go from XT60 back to traditional 4mm banana style. The included balance lead is 5 pin XH style and one tab may need to be trimmed to fit properly into the balance socket depending on your charger's needs. 

Safety is a major concern for any form of parallel charging. Checking each cell of every single battery before connecting them together is extremely important! If you see a cell's voltage that is not like the rest, do not charge it with the others in parallel! To help with this, we have added a cell checker at the top of the board. You need to check them one at a time before plugging them all into the board, however. We have also provided replaceable fuses between the main power leads to aid in preventing surges from one pack to another. We suggest only parallel charging packs that are within roughly 0.1 volts per cell, or 0.4 volts for a 4S pack. So a pack that is at 15.0 volts total would be safe to charge with another pack that was 15.4 volts or 14.6 volts. 

Specifications

  • Input Power Connector: XT60 Male housing, Female Bullets with 12AWG wire
    • Also includes 4mm banana adapter
  • Charge Connector: 10x XT60 Female housing, Male Bullets
  • Fuse: 15A automotive (removable without de-soldering)3
  • Balance Connector: 10x XH 4s Connectors
  • Dimensions: 135 x 80 x 25mm
  • Maximum Current: 70A Total (Needs to use more than 4 ports)
  • Note: LCD Voltage Display may differ ±5% from your charger. Voltages within this range are not considered a faulty reading. 

Orders are shipped from Columbus, the capital city of Ohio, USA.

An order placed before 2:00pm Eastern Standard Time will be shipped the same working day.

We ship on Monday-Friday by US postal service (USPS) and UPS, and Saturday morning by USPS if a local post office is open. Any order placed on Saturday morning may or may not be shipped the same day. Orders placed on Sunday and US holidays will be shipped the next working day.

Domestic:

Retail orders above $80 may be eligible for free shipping, including contiguous United States, Alaska, Guam, Hawaii, Puerto Rico, and APO addresses. We will use either USPS or UPS that most packages can be delivered in 3-5 working days, but not guaranteed. However, for packages contain large and heavy items, such as power supply, we may use parcel post service or UPS Surepost that may take up to 7 working days to be delivered.

USPS First Class Mail and Priority Mail, Express Mail, and UPS services can be used for domestic addresses. Tracking number and delivery confirmation will be provided to the customer when they are available. If you have not received a tracking information E-mail, please log into your account and click the "view order" link, then click "Track your order" link to find out the tracking number and ship method.

USPS Priority Mail is typically delivered in 3 working days. But very occasionally a priority mail package may be delayed for several days in the mailing system. If delivery time is extremely critical to your order, we would recommend Priority Mail Express or other couriers.

Domestic First Class Mail is only 1-2 days slower than Priority Mail in delivery. We suggest domestic customers choose First Class Mail for an order under 15 oz to save shipping cost.

Real shipping cost is calculated according to package weight and distance, and can be found in the checkout page after delivery address is specified in the fields.

Any order of $200 and above requires addressee's signature confirmation upon receipt of the package. Please contact us in advance or leave a comment in the message box if you want to waive signature confirmation.

We always check the legality of potential fraudulent orders. This procedure may lead to 1-2 working days delay in shipping in some rare cases.

We do not ship products to shipping forwarding companies. Any order shows this kind of address will be cancelled and refunded without notification.

International:

DHL, DHL Express, US Postal Service (USPS) First Class Mail, Priority Mail, and Express Mail (EMS), and UPS services can be selected for international addresses. Shipping cost is calculated according to package weight and distance, and can be found in the check out process. A package usually takes around 7-10 days to be delivered, or occasionally up to 45 days depending on the processing speed in your country, especially in some countries such as Brazil and Russia.

USPS First Class Mail is a budget shipping method. As soon as a First Class Mail package left USPS Chicago hub there will be no tracking information available. If you need detailed tracking information and timely delivery please do not use this shipping method.

Presently we cannot ship lithium batteries internationally by US Post Service or any other air shipping method. Please select UPS Ground if your order contains LiPo or LiFe battery.

We do not ship products to shipping forwarding companies. Any order shows this kind of address will be cancelled and refunded without notification.

STRIX 4S Parallel Charging Board 2.0 JB Signature Line

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