BiKaseEBike Battery Bag - Mountable Battery Storage Bag, Waterproof & Fire Resistant, Lithium Ion Battery Storage for Camping or Long-Distance Biking, Fits Most Batteries

This bag fits one or TWO QuietKat Pathfinder 17.25Ah batteries (17" x 3-1/2" x 3-1/4" each). Batteries in bag fits snugly inside QuietKat Cargo Basket (19" x 12" x 6") with some room to spare for other items. Battery bag fabric is so thick it might as well be considered a padded bag. The buckled roll-top end ensures your batteries stay dry. This bag will go with me on every long Ebike trip I take. Highly recommend.

UPDATE: As I mentioned in my initial post the bag was a tight fit. After thinking about that I decided to glue Velcro stipes to the case opening. This worked great, I can now close the bag. Just a hint if someone else wants to use the bag for wheelchair batteries like mine.**********************************************************************I needed a safe lithium battery bag for my wheelchair batteries when flying because airlines require lithium wheelchair batteries that can be removed, to be removed, and carried in the cabin while the wheelchair itself is carried in the hold with the checked luggage. My batteries are large, 21.5 long x 3.5 wide x 1.5 thick inches, and this was the only bag I found that met airline requirements for safe transport and would accommodate my batteries size. The bag is a very tight fit for the batteries but it will do the job I need it for, just cannot close it in the manner it was designed for.The bag is very well made to handle rough handling, the outer shell is thick and when properly closed I would expect it to be somewhat waterproof. Description indicates it is fireproof but I have no way of verifying that; but, another reason it meets airline requirements. There are two straps for attaching it to the rack on a bike or similar vehicle. I feel I will get years of service with this bag.I had good service from the vendor when asking questions, shipping was fast, and it was delivered 7 days earlier than originally estimated. I would recommend this bad for its intended purpose or for a not-so-intended purpose such as I have.

I can fit two 16 inch long Aventon batteries inside the bag. For those looking for a handle, tightly fold down the opening 2 or 3 times, then bring the two buckles together to cinch the end, forming the handle. I buckle the handle around my seat post before strapping to bag to the rack, which seems to make the fit a lot more stable and keeps it centered on the rack. This does make getting the battery out a little more fussy, but it’s a minor inconvenience. My only complaint so far is that I wish the straps were fastened with a buckle rather than Velcro, which will inevitably get dirty. Wider and thicker straps would be nice too. It’s well padded and worth the price so far.

I like the bags they do what I want out of them, they store my extra e-bike batteries. If there is anything I don't like, and this is my fault when I ordered the bags, they are a little too long for what I need that's my mistake nothing to do with the quality of the bags. But even with the extra length I still can make them work

Just got both versions of the bag. The smaller one is 4" x 4". The larger one is 3.5" x 7.25".My Ride1Up 700 series battery fits in the smaller one with wiggle room to spare. Two of those batteries fit snugly into the 3.5" x 7.25".Probably worth finding a basket that fits the bagged batter(ies). Strapping them right to the rack works well enough, but sacrificing the carrying capacity of the rack to do so warrents a rear basket.

Product was ok until the strap stitching just failed. Waste of money. Buyer beware. Can’t refund it or return it.

I needed a bag to carry an extra 20 amp hour battery when I go on long excursions. This bag fits the bill perfectly. Solid construction and easy to use. Now my Freesky Swift Horse has over 80 miles of range!!

Like to bring a second battery on my ebike for extended range. Mounts nicely on the rear rack