Roger that. When it comes back in stock I will swoop it up.I use ac only. It had the highest ac wattage I could find for a reasonable price which is why I bought it. External power supplies confused me
In my opinion depends how on fast I want to hit the track..I really don't stress about how long my batteries will last in the long run.when I notice they don't last as long as they should I just buy new ones..cost of batteries don't bother me since I allways find them cheap enough.i only use 3s batteries at 5200 mah so they are not expensive..I have some that are 4 years old still get 25 minutes at least on them of run time..I think people over think ..or I suppose it's the mind set of the cost.. listen it's a expensive hobby so if your going to worry about battery cost well then maybe it's time to find a solar powered RC car lol..just saying..stop worrying about cost..just bash and have fun ..I charge mine at 4.5 amps and no problem s yet.and when and if I do get problems well then I'll buy more..no big deal ..most important thing is not to over charge over 4.2 on each cell or keep your lipos under 3.0 .charge them in lipo bags and make sure you use the balance board..that's it..worry about other things...I only do speed runs and if I should worry about anything it should be tire cost since I burn through sets like crazy..doing 145 -160mph tires don't last long for me .. but who cares ..it's the nature of the hobby..have fun .Personally, I charge everything at 1C because I know it's a good balance between speed while being gentle enough on the cells but that's not to say you can't or shouldn't charge them at higher rates. Even lower cost lipos such as the CNHL G+ line are advertised with a max charge rate of 5C. What it boils down to is, in how big of a rush are you to get out there? A 1C charge rate is sufficient to charge any of my batteries from storage to full in about 20 minutes (which is plenty fast enough for my liking), including a set of G-Ace 15000mAh bricks. I've never sat there thinking, "Hurry up!!" and I just use the time to work through a checklist of things I like to go over every time before I take my car out. It is worth noting, however, that the higher the rate you charge your lipos at, the less mAh you'll be able to pump into them and it will shorten the overall lifespan of the battery. By how much? Difficult to say, I've never seen any quantitative analysis of cell degradation in relation to charging rate. To my knowledge, typical lipos will degrade to 80% of their initial power/performance within 300-500 charging cycles (I believe these figures are based on a 1C charge rate but I'm not 100% on that so take it with a pinch of salt).
Best practice would be to monitor and keep a journal of the internal resistance (IR) of the cells in your packs as these will be a decent indicator of cell degradation over time. There are some things to look out for when measuring IR, particularly that the conditions and variables specific to IR measurements are kept as homogenous as humanly possible so that the readings you get are meaningful as simple things as a few degrees temperature difference can skew values by a few mΩ. But as long as you keep the conditions under which you take measurements as close to identical as you can, you'll have data that you can track to keep a closer eye on battery condition.
To your second question, CNHL makes great batteries at a reasonable price. Unless you're trying to squeeze every last bit out of a high performance setup for speed running or drag racing, the extra money you're paying for premium lipos such as SMC or Onyx is a waste of money imho but I've seen speed runners get excellent results with CNHL G+ lipos that rival batteries at twice the cost. Unless, of course, you have money to burn and just want to have the best because they exist, I'm the last person who'd try to talk you out of it.
My take. As always, YMMV
From storage to fully charged never takes me more than 45 minutes at 1c. Something isn't right there.
I've never needed to cut that on my 6s balance extention leads the plastic is malleable enough that the balance lead plugs right in.
1C rate. Best for Lipo longevity. And Lipo Safety. Some lipos are labled with max C rates over 1C. I disregard. Always 1C for me.
Ok, so you don't even charge at a 1C rate which will increase the longevity of your batteries as I outlined in my post. I'm happy that money is not an issue for you but I'll worry about the costs that I think are relevant as they affect my wallet...and a solar powered RC car? Not really an option for a night speed runner. Cute idea though. I'm on a somewhat limited budget and batteries (the ones I want anyways) aren't cheap and I can't just replace them at a whim. Could I use cheaper batteries? Sure. I have and sometimes do. Do they offer the same performance? No.
Same. Your charger will need some balls however to charge these at 1C
1 amp or 1 c?
Well I put in my mah of the battery and then let it charge by the charger. I don't put in C rating anywhere.
Well, you are in a round about way. If you put in say 6600mAh, then 6.6A is a 1C charge rate. I'd assume the charger knows this.
true if I charge it it does shows that. But I have a charger which only gos to 6.8 or 7 and then I don't know what I should do with batteries which have 7.800 or 8500mah. Bought another one just to be save that I don't do anything wrong
1 Amp???
That's like 1/5th C Rate......for a 5k mah lipo.
2C charge rates for me as well. I've been doing this (2C charge rates) for the past seven years, and the compromise is great. I started with LiPo batteries back in 2010 and did the whole 1C thing for about five years. Keeping a fleet of RCs running, when friends and family come over to play all day, required many chargers (four ports total). I still had to wait for packs to finish up charging to keep the fun going. Bumping up the amperage to do 2C charge rates made life so much easier. Normally, it takes, from storage voltage to fully balanced charge, 20 ~30 minutes to get things done.
Your a rebel!
Are they all about the same age? It could be they are just at the end of their lives. Did you change your power plant in any of your cars? Could be working them too hard. Maybe your charger is pooping out? Maybe LVC is not working correctly in one of your cars? Are you leaving your batteries at a “good” storage voltage when not actively using them? Could be lots of things.
I think many overlook the Balance Current when choosing a charger.
(from AMZ) Shipping Box was damaged and no padding or Bubble wrap was used.Would you be kind enough to name your charger, I am looking for a recommendation to charge two 11000 mah batteries in a "reasonable " time frame.
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