Problem with batteries

Hello to all
I have a main issue with batteries from rodeo 150.I have this drone 1 month now and i use one original battery and 4 others (giant power) from ebay. After 10-15 recharges all the batteries last about one minute of flying,but when i put them to my charger it shows that the batteries are on 60% charged!! I bought one more tattoo battery few days ago and from the first flying i had the same problem! I believe that the problem is on the drone and not from batteries.I m thinking to change the Power Board...
Do any one have this issue or suggest what to do?

 

Are u balance charging the batteries? What charger are you using? I bought an inexpensive charger($35usd) after i had battery issues and i haven't had an issue since. If u have an adjustable charger plug your batteries into the balance port AND main port, set charger to balance charge, set amps to .5, be sure voltage end point is set to 8.4v. If u dont have charger tge one i bought has served me well I'll attempt to post a pic. Its a Turnigy Accucell 6, 80watt 10amp.

 

This would be due to current draw, correct? A battery with more mah but same weight will not push more current but has more capacity for longer flights granted the discharge rate is the same.

On my whoops i can tell a difference in flight time with a 220mah lipo vs 150mah lipo of the same weight and c rating. If i fly a 220mah with 25c rating i have less punch with longer flights than a 220mah rated 45c. I have one 45c atm but prefer the power over 30 seconds of flight. On the same note if i was a good pilot the added power would allow longer flights due to not needing to punch but using proper throttle control. In my limited experience weight is the determining factor with battery choice(other than voltage of course). I will choose a larger larger mah battery every time if the weight and dimensions are compatable with the craft. I could be very wrong on this subject but my experience has yet to persuade me to think otherwise.

 

I have many different mah 3.7v batteries i use for my whoops. I typically buy whats on sale and what i can afford while staying within limits of dimension and weight. I have seen Videos where Bardwell tests batteries only to discover most manufacturers ratings other than voltage are averages and rarely match what the battery actually produces. Another very reputable enthusiasts goes as far as to say C ratings are nothing more than marketing and are made up numbers based on the discharge a manufacturer feels their battery produces based in materials and other factors. I understand that a LiPo battery has a certain elemental makeup but as with most elements some are more pure than others.

My main point and question is that a higher mah battery is often larger therefore puts more strain on a crafts power system hence pulling more current. The mah rating of the battery itself has no bearing on the current flow and the battery will only attempt to put out what it is being asked to deliver. The ability of the battery to keep up with this draw isn't the issue as I'm aware from experience that lag, heat, puffing and even fire can result from over demand.

I've read post where ppl will advise against the use of a larger mah battery because it will spin the props too fast or the craft will be overpowered when essentially a larger mah battery will most likely only impede performance instead of increase it. I am correct in my assumption that more mah does not allow more power but capacity.

I come from an automotive background including RC racing cars prior to my new passion for aviation. My analogy on batteries relates to a gas engines fuel system. I understand it like this:

A)The voltage of a battery is the carburetor or EFI that introduces the fuel mix to the engine or E motor. The larger the carb, delivery system or voltage the more potential power the engine or motor can produce.

B)The size of the fuel tank is the mah. The more it will hold the longer before it needed refilling or a recharge.

C)The diameter of fuel lines is the circuitry, connectors and wiring quage. The lines or circuitry can only flow as much as the diameter, guage or lack of resistance will allow.

D)The fuel pump, injector size, and carb jets are the C rating that allows a certain amount of fuel or current to be introduced into the engine or motor if the circuitry or lines can transfer it.

I am hoping i am correct because i truly want to understand the basics so i may learn more on the finer details of electronic components. I also hope im correct so that others who think like me but havent been able to relate can undestand a little better as well.

I try not to speak on what i am not sure of and prefer to learn tgan teach but if asked i do like to help with proper info

 

U only elaborated on my analogy. In no way did you find any fault in it. If i was to repeat something you say in different words i feel as if you'd disagree only to reword the same statement. The more we chat the less educated i feel. I'm sorry if I'm being harsh but a little knowledge doesn't make you THE authority and everyone else wrong. I have tolerated your delivery up until this last response but as i said it seems that no matter what i say you will say im wrong. If i say purple youll disagree and say violet. Violet is purple to most people. I understand details are important but most often going into particulars makes a person seem pety and conversations or discussions very unpleasant.

I think I'll find another source of information because you seem to only know as much as i do and instead of helping me understand you would rather dissect my statements and attempt to outsmart me by reworking my statements and going into parriculars that are basic knowledge therefore not mentioned by me.

I understand physics. Physics isn't the info im seeking. Im hoping to learn more about the principals of electrical equipment as they relate to batteries, current, amperage, resistance, ohms and the like. On my bench physics of a quadcopter has no bearing.

I do appreciate your replies but have also discovered i may need to unsubscribe from this forum. The info i seek is more general and aimed towards improving my flying experience instead of using equipment and methods that %90 of people use. I like to improve and better myself and my toys. To keep a quadcopter the same as it rolled out the factory is not what i enjoy. If charging a battery, flying and then packing up til next time was my goal i could save a lot of money and fly my Syma X5SW everday. I never have to repair it. The cons are its slow, it is too easy to fly, the gyro fights me the whole time trying to stabalize the craft when i want agility, the range is poor. All these factors make FPV flying u eventful therefore pushing me towards the joys of hobby grade build, fly, improve, crash, repair, fly and repeat

 

Lol, now you're just being common. I'm sure I'm not the only one who has told u these things, hense your attempt at degradation. Your electrical degree from 30plus years ago doesn't impress me just as my chemistry degree from 8yrs ago rarely impresses anyone. If we had expertise and demanding and worthy careers using these degrees we wouldn't have time to talk toys on an online forum daily, hahaha. You may have some knowledge but your common sense and social skills do nothing for the hobby as most of us only want to enjoy our toy copters, planes and cars and not use them as a means to demean others. You try to talk a good talk but I've yet to actually see any proof of your abilities in the quadcopter field (custom builds, unique mods, etc). I've actually mostly read repetitive statements and until last couple of replies i thought u could possibly be a rep replying from a script lol.