One of my Lipo's just charged in a different fashion. One of the four cell equalizer lights on the charger would blink from time to time. Tester shows: Cell 1: 4.01 Cell 2: 4.00 Cell 3: 4.22 Cell 4: 4.21 Is that amount of load difference reason enough for concern?
Brad: I would certainly treat it with some suspicion. Cell 2 may be telegraphing that it's about to fail, so keep an eye on it. Out of curiosity, have you stored the LiPo for lengthy periods fully charged? Andy.
I have been discharging it to 15.4 for storage. Curious though that it was the light for Cell 3 that was blinking.
I thought so - thought I'd ask. The same thing happened to me - same numbers on my Lipo's. There was an earlier thread where this was happening to someone else and he posted a video of the charger flashing. Someone advised to get a balancer as maybe the Lipo's was unbalanced. I ordered on via a link provided but it showed up with no jst connection or balance tap. While I was waiting for it to show up I charged another battery. They were both 3.80 +/- 1 going into the charger, but we're coming out with your numbers when done. I'm thinking maybe a bad batch of chargers went out. I also noticed the charge light would turn green from one side, but still red when viewed from the opposite side. I've since purchased a new Hyperion charger from quadcopter and the batteries are back to normal. I'll send you the link later when I get back home if you'd like.
Mike: I forgot to mention that in my post as well - the charger light was amber when viewed from above and more red when viewed from the side (if my memory is right). This was using a Freefly charger I bought from Abel Cine as a backup. I am going to be shooting tonight so I will mark that battery and see how it behaves. Please send me the link for the Hyperion. I am getting a little tired of buying backup batteries/chargers/everything but such is production life. Thanks.
I think the charge light goes amber (aka Red + Green) while it's in the final stages of charging. Just a working theory I have. Because I've come to the MōVI via the copter side of things, I use a Hyperion SuperDuo to charge all the LiPos (flight, gimbal, and MōVI). Brad: Here's the smaller Hyperion: https://www.quadrocopter.com/Hyperion-EOS-1420i-NET3-Balance-Charger_p_253.html You will need an AC to DC converter to power it though (or a car battery in the field): the smaller one of these is: http://www.amazon.com/ProgressiveRC-PS-PRC500-PRC500-Power-Supply/dp/B00CD9VJFG (QC used to carry them but don't seem to any more). The Hyperion I actually use is more "industrial" and is here: https://www.quadrocopter.com/Hyperion-EOS-0720i-DUO3_p_251.html with this AC/DC converter: https://www.quadrocopter.com/eFuel-1200W50A-Power-Supply_p_1246.html (which drives two Hyperions). You will need some banana plug to JST charging leads: banana plug jst charging cables Andy
Brad, The charger I bought is this: http://www.quadrocopter.com/Hyperion-EOS-0606i_p_252.html It's pretty cool as it's got DC clips built in and comes with a number of balance plugs. You could use your Freefly charger banana to jst cable, but I just bought this also: http://www.quadrocopter.com/Octopus-Multi-Connector-Adapter-Charging-Cable_p_577.html I come to this from the video side and I'm new to Lipo's, but trying to learn. I suspect the Freefly charger because I used it for about 3 cycles per battery with the same charging times, light displays, and success. It was only when I noticed that this was taking a really long time and the different flashing cell lights and odd red/green light. I thought the same thing as Andy - it's orange-ish and almost done, but an hour or so later - no luck. Mike
Has anyone seen a parallel board with JST plugs on it? I have a couple for the EC5 plugs, but haven't had any luck with a JST version ... It may just look a bit neater compared with a harness?
Chris: I haven't seen a board, just this - which I assume is what you're referring to as a harness? http://www.ebay.com/itm/Quantum-JST...-CL-0007-/371010582670?_trksid=p2054897.l4276
Yep, thats the type of harness ... a board would also have balance plugs on it like this http://www.hobbyking.com/hobbyking/store/__19432__parallel_charging_board_for_6_packs_2_6s_ec5_.html If I can't find one I will use the multiple balance connectors on a board, and power input from a jet harness ... a harness should be about a 10 min job to make ...