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Dual Explosion-Proof Chamber for Battery Test (20" x 20" x 20", 125L, UN38.3.4.7&8 )

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BS-099 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 testings of multiple batteries at the same time.



 110 or 240VAC ( 50/60Hz), 100W

Chamber Material & Size

  • 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
  • Inside chamber Size:
    • Width x Height x Deep: 19" x 19" x 19" (x 2), without smoke detector
    • Width x Height x Deep: 19" x 15" x 19" (x 2), with smoke detector
  • Testing Cables: Two 3 meters long cable with clamp are included, Max. current rating is 30A 
  • Ports: Each chamber has two 2" diameter holes which are for electric cables of battery testing equipment
  • Safety door: 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 circuit


  • Anti-explosion LED light (30W) is installed inside of each chamber. 
  • Angle of illumination is adjustable upto 90°

Venting Fan

  • Venting port with high quality exhaust fan is installed  in 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 battery explosion.
  • Picture 3 shows inside the chamber: with LED light, smoke detector, fan and relief door.

Electrode holder & cable

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

Electrode Holder & Cable

One pair of battery electrode clamps with 10awg wire (30A Max.) is built into each chamber for quick connection to batteries

Weight & Dimension

  • LxWxH: 27.55x 25x 71 inches  (700x630x1800mm)
  • 441LB (200Kg)

Shipping Weight & Dimension

  • 620LB, 48x40x88 inches

Video Presentation

Compliance & Warranty

  • One year limited manufacturer's warranty with lifetime support, extended warranty available upon request at additional cost.

Application Notes

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