Howdy! So there has been twice in my life if felt like my emails were hacked and an idea of mine was stolen.... Both times stopped my heart but then I looked at the product and discovered they were different than mine! My name is Evan Krause some of you know me most of you don't. I met a fair number of you guys last your at the Nats in Blyeville. It was an honor and a pleasure to meet y'all. This was my first Nats I've gone to since like 1997 or something. I've been flying rc planes since the late 80's. I started flying pattern after attending a TOC back in 1992. The TOC motivated me to seek out a contest and find out what is was about and I've been hooked ever since. I took a 10 year break or so to raise a family and got back into flying about 2010. Upon my return to pattern electric was a thing! I was bent on sticking with glow as it was all too common to me. After much persuasion, I reluctantly got my first electric plane and was hooked. It was more about flying less about repairing! Mmmm I liked that idea! As a career choice I chose to get into Refrigeration and HVAC. A big part of what I do there is problem solving. A lot of equipment I work on is new untested technology. Well I'm sure its tested but from time to time I discover things the Engineers left out. I'm not an Engineer just a re-engineerer! I have 2 patents to my credit. So problem solving is something I do. So I began flying electric planes and I noticed there was a problem. The batteries never lasted the 100 flights I was told they usually lasted and I watched several guys frantically pull smoking overheated packs from their plane, burning their fingers in the process. It happened to me once and only once! I had no idea if they were about to burst into flames. I couldn't get the Velcro straps undone fast enough. Not cool. At the end of 2016 I had bought some new packs. I hadn't hardly flown the packs. At the beginning of 2017 they were overheating started to puff up and I said to myself it's time to do something different because what we were doing wasn't working. I bought 3 brand new packs from F3A while at a contest in West Virginia. I took them home and went to work to create an removable battery tray. I already had the mounting rods in place I just had to fashion a plate that was easily removable. My criteria for the new tray were it had to be easily removable. It had to keep the batteries separated. It had to keep the batteries cool. And last but not least had to be light and couldn't fail! I started looking around my shop for a suitable piece of material. Lite ply was out because I was afraid it would fail and not do much to keep the batteries cool. After all I already had a lite ply tray and to me it was synonymous with failed batteries. So aluminum sheet was my choice for the material. I went to the hobby shop and found myself a suitable piece of aluminum and took it back to my work shop to fashion it into a battery tray. After much consideration and a couple of pieces of material later a suitable battery tray was formed. It was really a Eureka moment for me. A dream coming to fruition. The plate was a little bit on the heavy side at about 70 grams. I drilled in some lightning holes and was able to get weight down to 60 grams. Still a little heavy but I was ready to fly it and see it in action. I painted it black to increase heat dissipation and was off to the field to try and make it fail! My method was surely not engineered approved. I strapped up a battery pack with Velcro and was airborne! I did some simple maneuvers at first and of course all was ok. So then came the moment I now had to try some snap rolls. Snap right mmm ok canopy still on! Snap to the left mmmm Canopy still on the plane again! I landed and checked inside the plane. The condition of my tray was all good!! The battery had slid a bit on the rails to the right. I added some slide stops to the rails and flew the new tray all last season. I only had the one tray so I had to pull the tray and change the packs after every flight. Towards the end of the season I made a couple more trays to eliminate this minor problem. Through the course of the 2017 season I put at least 100 flights on the new tray system and came up with some pretty amazing results. So much so I decided to make some improvements to get the weight down and do a production run on them because I think everyone can benefit from this system. What I discovered was I have been really setting up my batteries to fail in the past. Id take two 5 cell packs put a spacer between then tape them together to make a set. Fly them and overheat the crud out of them then whine why did they fail? Our batteries are failing due to the heat my friends. Some of the benefits from using the new tray are. #1 in case of emergency the batteries can be removed in seconds without panic.#2 I feel as though I'm burning less milliamps. I use to land with 20-30% now I'm landing with 35-45% consistently. #3 my CG is dialed in to the gram! By using multiple trays I am able to maintain consistent CG no matter the pack weight. I balance all the packs in the plane at the same time then put marks on each tray for proper position. Any future CG change I make now is done by moving the receiver pack in the plane. #4 Using multiple trays allows me to leave spent batteries on the tray for more rapid cooling after the flight. #5 You can mount the batteries in any position you want even vertically if you wish. They can be placed in the plane upside down or right side up. When placing them upside down the locking clip is easier to see and install. #6 the 3 sets of batteries I flew all last year look brand new! They never seen more than 90 Deg F. They are as hard as new with no puffiness at all. Internal IR are mostly in the 2.5 range but a couple of cells measure 3.2 after 30-40 flights. That's incredible. #7 if your old packs are not to far gone the tray can add new life to them. Those old packs of mine from 2016, I decided to charge them up and fly them one last time on the tray to burn them down to toss out. To my amazement they made it thru the entire pattern! One set did not and they will get tossed. I have a limited number of trays available for anyone that is interested in them. Trays weigh in at 42 grams and are anodized in red. They are $20 per tray or $30 for a kit. A kit consists of 1 tray, 2 locking clips, 2 Carbon Rods, 4 Lite ply donuts, 4 slide stoppers, 4 Velcro Straps. You can email me at [email protected] if your interested. I only take PayPal or postal money orders. I may or may not produce more of these so get them while I have them. I am also interested in finding a distributor for the product as well. Please email me if your interested.