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Dual Explosion-Proof Box for Battery Safety Test ( 20"x20"x20", 125L, UN38.3.4.7 & 8 ) - MSK-TE903

In stock
Item Number: MSKTE903
Transported by LTL Freight (Truck)

The MSK-TE903 Dual Explosion-Proof Steel Box provides a safe enclosure for over-charging & forced discharging of all kinds of battery cell testings based on the UN38.3 standard ( & The two separate compartments with a total of 4 feedthrough ports allow for the testings of multiple batteries at the same time.



100 - 240VAC ( 50/60Hz), 100W

Structure & Material


  • Materials:    
    • Chamber:  1.5 mm thick brushed SS304  with tensile strength > 500 Mpa
    • Exterior:    3 mm thickness cold rolled steel with tensile strength > 400 Mpa
  • Structure:            Two anti-explosion chambers, top and bottom
  • Chamber Size:     500mm x 500mm x 500mm (x2)
  • Testing Cables:    Two 3 meters long cable with clamp are included, Max. current rating is 30A 
  • Ports:                  Each chamber has two 2" diameter holes reserved for electric cables of battery testing equipment
  • Safety door: The pressure relief door is built on the back of each chamber. In the event of a battery explosion, the door will open and release pressure. 
  • Note:  The max. capacity of Li-Ion batteries to be tested in the chamber should be limited to 4.2V@ 40Ah for single-cell  or 160Wh for battery pack without protection circus

Venting Fan

  • Venting port with high-quality exhaust fan is installed in the back chamber which shall be connected to your venting system. (ducting and exhaust system are not included )
  • Warning:  Must keep venting fan and exhaust system running during battery testing to avoid pressure build-up in the case of a battery explosion.
  • Venting fan: 24 VDC, 3425 RPM, 235 CFM, 54.3 dBA
  • Centrifugal in-line exhaust fan with aluminum flex duct connection is recommended but not included.
  • If you need control chamber temperature between 23oC - 46oC, we may help you to install a spot air conditioner ad the picture below, at the extra cost


  • Anti-explosion LED light (30W) is installed inside of each chamber. 
  • The angle of illumination is adjustable up to 90°

Electrode Holder & Cables

Two sets of battery electrode clamps with 10 AWG gauge cables (30A Max.) are included for easy & quick connections to batteries


Four mobile wheels are installed at the bottom for easy transportation

Net Weight & Dimensions

  • 220 kg
  • L700mm x W630mm x H1800mm
Shipping Weight & Dimensions
  • 620 lbs
  • 48"x40"x88"
Battery Testers (Optional)

A smart battery analyzer for use as the source of over-charging and forced discharging is available through here:

Warranty One year limited manufacturer's warranty with lifetime support; extended warranty available upon request at additional cost.
Demo Video
Application Notes

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1. Prices listed online are valid for the US market and who pay by credit card only. There will be extra charges for shipping & handling. Price various from country to country.
2. We may add extra charges for paper order and net30 terms due to extra labor costs.
3. The prices listed are subject to change without notice.