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ProTek R/C "Flak Jacket" Flame Resistant Lithium Polymer Charging Bag (16x6.5x7cm)

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This is the ProTek R/C "Flak Jacket" Flame Resistant Lithium Polymer Charging Bag. LiPo sacks are required at most tracks, and are highly recommended for all LiPo applications due to the associated risks. When your table space is limited, the last thing you want is a bulky item taking up space. Plus, the size of most 2S - 4S LiPo packs doesn't justify using a large bag. Once again, ProTek R/C has you covered with a smaller, more convenient solution developed specifically for surface applications and smaller flight packs. Because less intrusive gear means more work space!

The ProTek R/C "Flak Jacket" is a conveniently sized bag that should be used when charging and storing your LiPo batteries. Its small 160x65x70mm footprint (16x6.5x7cm) will fit just about anywhere and is the perfect compliment to most 2S - 4S hardcase and softcase packs, as well as smaller flight packs. The space age materials and thick, industrial strength hook and loop fastener will help to reduce the severity of a LiPo battery fire, while the attached strap will allow you to move the battery to a safe place if a problem should occur.

NOTE: Due to the volatile nature of Lithium chemistry batteries, charging bags such as the ProTek Lithium Polymer Flame Resistant Storage Bag are required by many tracks, flight clubs and at ROAR sanctioned events. 


  • Never leave charging battery unattended 
  • Always ensure the battery is on a non-flammable surface 
  • Ensure flap is sealed while charging 
  • This ProTek R/C lithium charging bag is intended to reduce the chance of damage in the event of a lipo fire. 


  1. Ensure that the charge rate is properly set and polarity is correct
  2. Attach charging leads to battery
  3. Place the bag on a non-flammable surface
  4. Place the battery into the Flak Jacket
  5. Route charge leads through the flap
  6. Close top flap and press hook and loop closure fully closed
  7. Charge battery using proper charging practices 

This product was added to our catalog on April 26, 2012.

terry wickum
Verified Owner
the flak jacket is what I use on a daily basis. I stack three protek batteries on their side across the bottom and one on top. keeps my pit bag much more organized and compact. GREAT PRODUCT from protek!
Verified Owner
Store all my Lipos in the Flak Jackets at all times for added safety. Holds 2 3s Lipos very well. No extended leads needed for the Onyx 235, charges nicely. Not awkward like the bags, takes up less table space.
Verified Owner
Great battery holder, first one I received was not stitched properly, inside edge was coming apart at seam, Amain took care of it, no problem, new one is better design, all the velcro is much wider.
Andrew palmer
Verified Owner
I've purchased two of these lipo safe bags and the newer versions are much better quality. They do tend to come appart at the seams after a few months use, hopefully amain get this sorted on newer makes. I recently had a 5000mah 4 cell lipo go up in smoke and I'm glad it was inside the bag! It did its job well and would purchase without hesitation.
Adam C
Verified Owner
I just received this and about 2 inches of the white inner fabric has come out of the seam on the side. I find it hard to believe a product of this nature wouldn't be more robust, with at least double stitching all the way though with thicker trimming etc..I have just contacted amain about it and I am sure they will help me out, I just hope they change the design of the product, after all it is made to protect people and property. Will update when I hear back from them, but for the moment I cannot recommend this product.
Brian Ferencin
Verified Owner
Awesome LIPO Charging Bag... I got this bag for my (2) Pro Tek 5800Mah 2 Cell LIPOS for charging & my track requires all racers to use a LIPO Charging Bag... This LIPO Bag takes up very little Pit Space on my Table @ the track & packs away nicely in my hauler bag after a day of racing @ the track... This Pro Tek LIPO Bag is the very best one I have ever owned & would recommend this Charging Bag to any racer... I also like the BIG PRO TEK LOGO on the TOP FLAP on this BAG as well....
Mohammad Albeloushi
Verified Owner
I prefer this style of Lipo-safe bags, but I'm not sure of their finishing quality. I had two of these, and on both of them the strap just fell off and the seam from the inside was opening up. Although A Main Hobbies took care of it, but it just makes me wonder how effective they will be if ever one of my batteries were to go on fire if it's already falling apart.
gene z
Verified Owner
Great product especially for the price. Well put together, spacious, and seems just as reliable as any Lipo bag on the market but hopefully won't have to find out!
Chris Riddington
Verified Owner
Great little bag, hold 3 -- 2s lipos. Works good have one for each of us to hold our batteries.

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