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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 testing 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-meter-long cables with clamps 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

  • A venting port with a 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 a 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 to control chamber temperature between 23oC - 46oC, we may help you to install a spot air conditioner ad the picture below, at the extra cost

Remote Control

  • A wireless hand-held remote controller can operate the machine within 10 10-meter distance for safe operation.


  • 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 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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