jp79er Posted September 14, 2014 Share Posted September 14, 2014 Right I got my first Lipo and have charged it at rate of 1.....so now it's ready to roll. I have set my LVC to it max 3.4v/cell.....its a 3c lipo so the book tells me not to go below 9v so I assume the setting of 3.4v Will cover it as I assume it's 3.4 x 3 making a total 10.2v....? Posted by me ???? Quote Link to comment Share on other sites More sharing options...
Oh How Original Posted September 14, 2014 Share Posted September 14, 2014 3.4v per cell is fine. Minimum you want them to go to is 3.2v per cell. Generally speaking an ESC's LVC will cut in a bit early too when under load, so setting it at 3.4v per cell, you'll be fine. Quote Link to comment Share on other sites More sharing options...
Noj Posted September 14, 2014 Share Posted September 14, 2014 Correct. Just be aware that not all ESC lvc's are 100% accurate, in that they over read cell voltage (hobbywing in particular). When you plug in to store/recharge, see what the charger is telling you the individual cell voltages are, then adjust the lvc accordingly if required Quote Link to comment Share on other sites More sharing options...
jp79er Posted September 14, 2014 Author Share Posted September 14, 2014 Mine is a hobbywing, the WP-S10E-RTR. ..... Posted by me ???? Quote Link to comment Share on other sites More sharing options...
Tug Posted September 14, 2014 Share Posted September 14, 2014 What Noj is saying is that you might find it cuts early. You'll know this if your supposedly empty 5000mah pack is only taking 3000mah to refill it. A new 5000mah pack should take anywhere from 4800 to just over 5000mah from empty. There is advice out there that says not to run lipos this low. Quote Link to comment Share on other sites More sharing options...
Noj Posted September 14, 2014 Share Posted September 14, 2014 ^^ thanks Tug Quote Link to comment Share on other sites More sharing options...
Alex97 Posted September 14, 2014 Share Posted September 14, 2014 (edited) On my hobbywing ESC I had it setup at 3.4v and it would cut off at 3.6v. After lowering it to 3.2v I haven't had any problems. I really only race now so lvc off isn't really needed as my cells never go below 3.70v as I chamge them otherwise the performance goes off a noticeable amount. Edited September 14, 2014 by alex97 Quote Link to comment Share on other sites More sharing options...
jp79er Posted September 14, 2014 Author Share Posted September 14, 2014 Mine is a dhk racing 3200mah 3c 20c lipo, it's first charge took just over 3200, so if it was discharging and hitting the LVC and then go to recharge the pack, what charge would you expect I.e. would I see something like 2000 mah charge or should it take a full charge each time? Posted by me ???? Quote Link to comment Share on other sites More sharing options...
Alex97 Posted September 14, 2014 Share Posted September 14, 2014 Full charge each time. Ive set my charger so it doesn't over charge them, from storage charge on 4.8 amps takes around 45min, for 4800mah I don't think that's to long. Quote Link to comment Share on other sites More sharing options...
Oh How Original Posted September 14, 2014 Share Posted September 14, 2014 Normally I have my LVC and LiPo buzzers set to kick in at 3.7v per cell then I don't have to bother storage charging them, they just go straight into the ammo tin. Cuts your run times by a bit but saves a lot of hassle back home when you have a lot of LiPos and onnly two chargers Quote Link to comment Share on other sites More sharing options...
jp79er Posted September 14, 2014 Author Share Posted September 14, 2014 Cheers guys for you help, you don't know how many times I checked every thing before I charged it......Just want to check k before I use it.... I fear the every time I touch it, it's going to explode...lol Posted by me ???? Quote Link to comment Share on other sites More sharing options...
Noj Posted September 14, 2014 Share Posted September 14, 2014 A fully charged, individual cell will read 4.2v. Never leave a lipo fully charged for longer than 24hrs, as the cells will begin to degrade. Lipos should be stored at 60% capacity, which is 3.8v per cell. Quote Link to comment Share on other sites More sharing options...
jp79er Posted September 14, 2014 Author Share Posted September 14, 2014 Oh.....charged late last night...well midnight, not going to use till tommorow lunchtime.....at 1 1/2 days??????? Is that going to ruin it? Posted by me ???? Quote Link to comment Share on other sites More sharing options...
Alex97 Posted September 14, 2014 Share Posted September 14, 2014 (edited) When you think what lipos go though while in the car they are built to take a bit of a bash so when you're masted charging as long as your not stupid you should be fine. That will be fine. You don't want to leave it much after 1 day. Edited September 14, 2014 by alex97 Quote Link to comment Share on other sites More sharing options...
Oh How Original Posted September 14, 2014 Share Posted September 14, 2014 Oh.....charged late last night...well midnight, not going to use till tommorow lunchtime.....at 1 1/2 days??????? Is that going to ruin it? Posted by me ???? No, they don't just ruin overnight What Noj was saying was if you leave them for long periods either above or below the recommended storage charge capacity, the cells start to degrade and will shorten your run times and also I believe punch? (could be wrong on that one) Longest I personally leave a LiPo full if I charged them the night before a bash and it rains or something is 3 days, I know everyone does it differently but mine all charge full and perform top notch so I just stick with it lol. But again, lots of LiPos and not lots of chargers so you have to pick your battles Quote Link to comment Share on other sites More sharing options...
jp79er Posted September 14, 2014 Author Share Posted September 14, 2014 I'll try an use it before I start work tommorow rather than lunch if can.... Posted by me ???? Quote Link to comment Share on other sites More sharing options...
Alex97 Posted September 14, 2014 Share Posted September 14, 2014 A few hours won't make much of a difference, I charge my battery's up on Friday night or Saturday night ready to use on Sunday morning and I don't feel any lose in performance. Quote Link to comment Share on other sites More sharing options...
Tug Posted September 14, 2014 Share Posted September 14, 2014 Mine is a dhk racing 3200mah 3c 20c lipo, it's first charge took just over 3200, so if it was discharging and hitting the LVC and then go to recharge the pack, what charge would you expect I.e. would I see something like 2000 mah charge or should it take a full charge each time? Posted by me ???? From empty that pack should take approximately 2800 to 3000mah. Quote Link to comment Share on other sites More sharing options...
jp79er Posted September 14, 2014 Author Share Posted September 14, 2014 Ah when you say degrade you mean a voltage drop off as it won't hold it's full charge forever.....which is understandable Posted by me ???? Quote Link to comment Share on other sites More sharing options...
Smoothybb Posted September 14, 2014 Share Posted September 14, 2014 I thought it was permanent degradation, as in won't be as punchy/powerful ever again. I abuse mine, leave em up to a week fully charged but have noticed they're definitely not as good as they were and I don't run that many cycles through em. Quote Link to comment Share on other sites More sharing options...
jp79er Posted September 14, 2014 Author Share Posted September 14, 2014 Also with the lipo the balance part the hx plug.....do I need to cover it in case it gets wet? Posted by me ???? Quote Link to comment Share on other sites More sharing options...
Alex97 Posted September 14, 2014 Share Posted September 14, 2014 I never have. Quote Link to comment Share on other sites More sharing options...
Oh How Original Posted September 14, 2014 Share Posted September 14, 2014 Never have either, I've had that much water on my LiPos that my buzzers have malfunctioned, it's never done anything to the LiPos. That's not to say you need to fully go and submerge them of course lol. Quote Link to comment Share on other sites More sharing options...
Alex97 Posted September 14, 2014 Share Posted September 14, 2014 Also stay near of salt water with lipos as they don't get one, FYI it will Destroy them. Quote Link to comment Share on other sites More sharing options...
jp79er Posted September 15, 2014 Author Share Posted September 15, 2014 is a lipo buzzer worth having? if so is it worth getting one that can read each cell or jus ta total pack...I am assuming although my LVC is set to 3.4v/Cell its only monitoring the pack as a whole not actually an individual CELL....also in a hours time I am about to head out to the park in my lunch time to see what the new `3200 3s 20C Lipo' does over my `7.2v 3000mah NiMH's'... ...hopefully it will seem like a rocketship at full chat with it screaming its nuts off....LOL.....knowing me I'll floor it rip the teeth of the diff gear then pack up and go home..LOL Quote Link to comment Share on other sites More sharing options...
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