iPhone chargers are 1A or more
Battery blinking blue light
- Thread starter Lalo77627
- Start date
iPhone chargers are 1A or more
Curious if anybody has seen this. I was checking for voltage and between pin 2/3 I got continuity. Any idea?
Refer to the diagram in this post Battery blinking blue light. If you have the meter set to read voltage you will not be able to read continuity in that setting. If you are reading 0.0 it means that cell is totally dead and was likely left on the charger while the charger was unplugged from the power source. The balancing circuitry in the OEM charger will drain energy from the cells when left in this condition.
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I have 4 batteries and I have always wondered am I recharging to much. I normally recharge when the percentage is about 20%. I put the battery in the charge and let it charge till the blue light is solid.
I may not use the drone for several weeks, and every time I fly the percentage is always starting at 97 or 98 % and I can fly for 7-9 minutes depending on if I use the video camera or not. This weekend I did the normal and for some reason all of my batteries did the same thing.
Connected drone to phone and phone to controller. took off and percentage showed 97% all of a sudden the percentage started dropping all the down to 10 % and the low battery warning came on by that point I had already lowered my altitude to about 2 feet and pressed the land button and it landed. this happened to all 4 batteries one after the other.
Can anyone tell me what is happening, I don't have a volt meter t check.
I may not use the drone for several weeks, and every time I fly the percentage is always starting at 97 or 98 % and I can fly for 7-9 minutes depending on if I use the video camera or not. This weekend I did the normal and for some reason all of my batteries did the same thing.
Connected drone to phone and phone to controller. took off and percentage showed 97% all of a sudden the percentage started dropping all the down to 10 % and the low battery warning came on by that point I had already lowered my altitude to about 2 feet and pressed the land button and it landed. this happened to all 4 batteries one after the other.
Can anyone tell me what is happening, I don't have a volt meter t check.
Hi, it is strange that this is happening to all four batteries at the same time.
Generally, it is not good to keep your LiPo batteries fully charged, that leads to fast and irreversible degradation of the internal chemistry, causing the kind of capacity loss you observed. However, it is odd that this appears so synchronously, so there may be something else playing in.
What happens if you recharge and discharge only one of your batteries repeatedly? (Leave the others discharged for the time being). Keep an eye on the battery while recharging, the risk of battery fires increases with degradation.
Generally, it is not good to keep your LiPo batteries fully charged, that leads to fast and irreversible degradation of the internal chemistry, causing the kind of capacity loss you observed. However, it is odd that this appears so synchronously, so there may be something else playing in.
What happens if you recharge and discharge only one of your batteries repeatedly? (Leave the others discharged for the time being). Keep an eye on the battery while recharging, the risk of battery fires increases with degradation.
PS: and it would probably be good to find a friend with a voltmeter, or grab one yourself in the next DIY store. They are not that expensive.
@Drattazzi,
@robbie2 is absolutely correct about leaving your batteries at a full charge for more than about three days. I have three batteries for the Breeze and before I got a third party charger that would allow me to put the batteries at a storage charge level (3.80 to 3.85 volts per cell or 11.4 to 11.55 volts for our 3S Breeze batteries) I would fly to 30% then land by 20%. This would put the batteries close to that voltage after they cooled down. I then charged them the night before I planned to fly.
It sounds like your batteries have developed at least one cell that has a high internal resistance (IR) and causes the fast discharge of the batteries. Are they taking longer to charge and spending more time in the balance charge phase at the end of charging?
@robbie2 is absolutely correct about leaving your batteries at a full charge for more than about three days. I have three batteries for the Breeze and before I got a third party charger that would allow me to put the batteries at a storage charge level (3.80 to 3.85 volts per cell or 11.4 to 11.55 volts for our 3S Breeze batteries) I would fly to 30% then land by 20%. This would put the batteries close to that voltage after they cooled down. I then charged them the night before I planned to fly.
It sounds like your batteries have developed at least one cell that has a high internal resistance (IR) and causes the fast discharge of the batteries. Are they taking longer to charge and spending more time in the balance charge phase at the end of charging?
Thanks, but I don’t consider it a hack. I have equipment to supply the needed voltage and current on my electronics bench, but wanted something cheap and easy so anyone could do this.
One nice thing is it can be placed in the Breeze case and be handy should you ever have the problem again.
The photos were perfect I had parked my breeze for over a year and worked as the thread said it would
The next time you are going to not fly for a few days, fly the Breeze until you are at 30% then land. Do this with all batteries you have charged. When they have cooled off they will rebound to around 11.4 to 11.5V which is storage voltage for 3S battery packs like the Breeze. They should be OK for 3 months or so then charge and fly again to 30%. Your batteries will last longer for you.
I am going to try this as my battery is also having blue blink issue. does it matter if i get the polarity wrong? as in Plus and Minus on wrong end.
thanks guys.
thanks guys.
Thanks, I've just tried it with a 2.1amp and each cell was back to 3v range within just few minutes.
They were 0.18v 0.4v and 1.9v before this.
Afterwards it charged fine in the charger but now I read 7.2amp on each cell , is this right?
thanks for your helpful guide!
You should be reading 4.2V on each cell. Lipo cells will never get to 7.2V without exploding. Double check your readings.
From your precharge readings it sounds like the battery was left in an unplugged charger. When the charger is unlocked lugged and the battery is left connected the balancing circuits are still attached to the battery and will drain the voltage to levels well below 3V. This caused irreparable damage to the cells and lowers their lifespan and ability to hold a useful charge. Be cautious using the battery to fly until you determine how long it will last by hovering near the ground for several flights.
Thanks DoomMeister! I was able to use an old phone charger to get my battery operational again. The cells were reading below 2v and I was able to get them all above 3.2v and the charger is charging it now. All my batteries are normally fine but I noticed my son left this particular battery in the charger unplugged for weeks. I wonder if the charger bridges all the terminals and drain them when not charging.
I'm going to make he doesn't do that again. All my batteries are from 2016 and they all charge fine.
Maybe other people are accidentally leaving their batteries in an unplugged charger?
Thanks!!!
Have one battery I haven't used in over a year due to Blue Light when trying to charge. Tested the cells as follows: .8, 3.7, 3.7. Cut a USB cable and stripped the wires and found the 5 volt output. Going to solder pins tomorrow and try it out 2 minutes to start. Will post results
Charged the low cell with the UBS cable mod. for 6 minutes and got it up to 3.6. Plugged it into the breeze battery charger and it went to the red light and a while after that it went to the red green flashing light for balance charge. It was on the charger for about 3 hours balance charging and the charger was getting slightly warm, so I took the battery out before it got to solid green. I checked the cells as follows: 3.99, 4.05 and 4.05 Not sure what to do next. Should I have left it on the charger longer?
It seems that cell is having issues balancing with the other two cells. Try using the USB cable mod to bring it up to the same voltage as the other two cells then place it in the charger again. It should finish balance charging within 30 minutes. If it fails to balance charge in that time check the individual cell voltages again and report them here.
This battery may be finished after that length of time with the cell at such a low voltage.
This battery may be finished after that length of time with the cell at such a low voltage.
