Danneh

Ah, excellent, thank you! I'll make the modifications at a later date, but I did the swap anyway, not too much trouble! A bit fiddly, and my battery sled doesn't sit *quite* flush any more due to having to add two more wires, and using higher gauges (plus the wires were rather long because I didn't trust my soldering), but I'm just happy it works! For any other novices looking at doing the swap, some things to note: 1) the RX200 fire button doesn't reach. I cut a circle/octagon of thin plastic, ~0.5mm, and superglued it in the recess. 2) the up/down buttons are too long. I used jeweller's files and filed mine down until the "lip" around them is about 1-1.5mm thick (just eyeballing here, don't trust my 'measurements'). 3) Be aware of how much space you have - there is a brass lever that screws from the negative of the whole battery sled into the ground of the board, make sure you leave a gap for it to fit when/if soldering in the negative from the 510. There also really isn't a lot of space between the battery sled and main compartment, if you use long/thick wires you may struggle for room, I could probably have done with filing down some of the middle plate. Edit: one thing I forgot to mention, my reuleaux doesn't get anywhere near as hot now. I assumed the temperature was simply due to the heat spreading from the atty from 100W chaining, but even despite my shoddy soldering skills, it now barely surpasses body temperature. I can only conclude it was the RX200 board.

Bumping this thread to ask this again. I'm just waiting on some wire before I perform the swap, but I want to include reverse polarity protection - how do I go about this? Should I use PNP MOSFETs, and if so where? Presumably one at the positive end of the series connection running to the board, but what about the balance connections? Or would it be simpler to modify the battery sled to have the rings?

Y'know it hadn't even occurred to me to bust out the multi-meter! Had a check and the voltages on each cell are fine, so it was definitely a charger issue. Weird how it charged fine for ~10-20 charges on each battery before deciding it just wouldn't do either. Thanks for the info on connecting to the main terminals, I've never used Li-Po's before, guess the fact that the included charger used the balance plug threw me off. I'll whip up a connector tomorrow and see how that goes

Hello there! So I'm having a really odd issue. I own a Hotcig DX200, with a spare battery, so I usually pop one on the lipo charger when it runs low and put the charged one on. I'm careful with my batteries, I remove them by pulling them straight off the mod, not at an angle, I don't leave them on the charger at full charge, they've never been wet, had juice spilled in them, or anything else I can think of that would cause this. So I woke up a couple of days ago, went to put one of the batteries on charge, and the charger didn't "read" that there was a battery connected. Tried the other one, same problem. When I plug the mod into Escribe, the individual cell voltages on both batteries read just fine, and are balanced. I figured it was a charger issue, I did crack it open to see if anything had come unsoldered (perhaps the 3s connector because they're fixed on the batteries and charger?), but nope, nada. I chalked it up to a crappy charger and went out and bought another today. Same problem. How can it be that Escribe reads the cells fine (indicating that the connectors on the batteries aren't damaged), yet the batteries simply will not charge on an external charger? It's even weirder that this happened to both batteries at exactly the same time. Anyone have any ideas?