Daniel M

I’m thinking on a list that would give us the most useful data. Probably will be a day or two before I have time to really sit down and put all my suggestions together as I’m up to my ears working on final revisions/strength testing a 3D model so I can start producing them in volume. As soon as I get some time to take a break from it I’ll pass along my suggestions.

I think it would be a very valuable database to have. All valid data is good data. The fact that your testing varies from the result from sources like Mooch doesn’t surprise me in the least. My data always does too. His tests often do not at all mirror the usage patterns of vaping. Also if could just be my tin foil hat side showing but I’d give a lot more weight to testing results coming from users using a known testing method like eScribe’s battery analysis than the data from “high profile” sources. When all the testing comes from a single person and they become high profile it’s always going to introduce the possibility that they could have a vested interest in changing the methodology to create a specific outcome. But a database of user generated test results with a set method that accurately mirrors the normal duty cycle would eliminate anyone from having an interest in skewing the results. If everyone uses the same method and simply shares results whatever they may be it can create a sample size that’s much larger and give you the ability to filter out any results that might be intentionally skewed as they would be easy to spot as being outside the normal standard deviation between cells. As a fellow mod manufacturer gearing up for a mod launch as well I also wish you the best of luck with yours as well.

I'm using 3s LiPo packs with my DNA 200 and it's having a problem where it's draining cell 1 at a much higher rate than cells 2 & 3 and also not charging balanced. It also seems to be draining Cell 1 even when not in use. I just pulled the pack out of it after I noticed that Cell 1 was down to 3.7 V when cells 2 & 3 were both still at 4.18 V. I have eliminated the battery as the issue as I have more than one pack and I have a LiPo charger/analyzer. I ran 6 full cycles on each pack to see if there was an issue with either pack to eliminate the possibility of the same cell going bad on both packs. However, both of the packs charge and discharge balanced on the analyzer. In the device Cell 1 seems to be barely charging when and usually stops charging at about 3.9 V. Whereas cells 2 & 3 will charge to 4.20 V. After cells 2 & 3 peak it drops to 0.05 A trickle for a long time and will bring cell 1 up a little bit but eventually it gives up and stops charging without ever peaking cell 1. In at a loss for other things to try. At this point I'm wondering if I just need to have the board looked at under wty but any suggestions of things to check would be greatly appreciated.

While what AWsum said is totally correct there is an easier way. I got mine from a guy on eBay that sells them with the right XT-30 plug and even with the leads cut to exactly the right length. Message me privately if you would like the link since I'm not sure if it's within the rules to post it here. -Daniel

Thanks for the reply. Sadly my analyzer software doesn't export into any plain text file so I did the next best thing and just moved the graph over into photoshop and did all the math the hard way by using pixel x y coordinates. In the end it worked perfectly and I ended up with an amazingly accurate discharge profile for the pack. I posted a thread for it detailing the method of testing with the CSV attached in hopes that would make it easiest for others to find since I was not sure this thread was the appropriate place for the CSV file.

I just completed the discharge testing on my LiPo analyzer and created the battery discharge profile CSV for escribe for the Turnigy Nano-Tech 1.0 11.1v 1000 mA LiPo pack. This battery of course can be used in many mods, of course, but I know for a fact its a perfect fit in a Starss Player 133/200 and the Asmodus Oni 167. Just for background on the testing I completed 3 full charge and discharge cycles on my analyzer to ensure I was getting accurate results. Average discharge rate for the tests was 1/2 amp however I tested at 1 amp and ended up with the same profile. I have attached the graph for anyone that wants to check my math however it should be really close to spot on. I hope this saves a little work for anyone looking to swap to using this LiPo pack instead of the stock 18650's those two mods come setup for. Turnigy Nano-Tech 1.0.csv

Does anyone have any ideas on the best way to convert discharge graphs that sadly I can only get as image files since my analyzer uses a proprietary format for its logs? I know I can eyeball create the graphs but I would love a more scientific automated process. I just got my LiPo for my DNA today so I haven't had a chance to produce a discharge graph for it but I have attached to example graphs from a charge log from an 11.1v 2200 mah pack out of my helicopter as an example of the type of output I get from the charger/analyzer. The discharge graphs are identical format they just go the other direction of course. Even if I have to do it manually this is going to be killer to be able to get my mod spot on for discharge now that I swapped to a lipo pack finally. Thanks.