Hi I bought a Ev Peak DY3 fr.o.m. aliexpress a week ago, works perfect for two batteries
Low battery warning
- Thread starter Mhjalilib
- Start date
The thing is that the way this batteries work, it's kind of hard to measure them in absolute percentages. Although 100% is easy, setting the right value for 0% is tricky.
If you were to set 0% at the point where the battery is completely empty, then you would have a dead battery the first time you got to 0%, not only that but also the aircraft would've shut down mid-air long before reaching 0%
If you were to set 0% to the point of emergency auto-landing (after the 2nd low battery warning) then you would be "tricked" into thinking you can reach 0% safely, while in fact, even reaching down to the first low battery warning is already pushing too much from the battery.
Don't pay too much attention to those 4 bars, they are not accurate to determine how much fuel you got left. The best thing to do is to monitor the voltage reported:
Full charge : 16.8V
Land now: 14.3V (you are on the low side of the battery, this is where you will get 1st Low batt warning, try to land before this)
After 14.3V you will still be able to fly (so it wouldn't really be considered 0%), but you are at risk of some things happening:
- Damaging the batteries
- The H could enter automatic landing (this could happen over water, or on a busy street)
- If you are too high or too far away, you are risking running out of fuel mid-air trying to return and having the motors stop while flying.
Greetings!
If I haven' been in the air for a week or so I use one battery just to uppdate the GPS almanac for up to 15 minutes and then I switch to fresh flight battery
Thanks for the info. What smart duel charger you recommend. I will be getting 2 powerextra batteries.
Come to think of it, I don't think I am getting the first battery warning. The first warning I get is the red screen saying under 60 feet and the st16 vibrates. I bring it in as soon as I see this. On the manual it say it does this at the 2nd warning. Am I missing something?
14.3v is what I got at time of warning
14.3v is what I got at time of warning
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I have been using a Hyperion EOS 720i Super Duo 3 for the past 3-4 years - it requires a 12v 20a power supply. But I just ordered this one... ISDT D2
ISDT D2 200W 20A AC Dual Channel Output Smart Battery Balance Charger
Because it has AC direct power source built in and has a terrific colour interface, also a dual multi-chemistry charger with all functions you could imagine.It's about $135US
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FlushVision
Premium Pilot
14.3v is the point that you get the first warning. Ideally, you should never still be in the air when you get any low voltage warnings.
PatR
Premium Pilot
Ya gotta figure some just throw the thing in the without understanding anything and try to figure it out later.
Sometimes you have to learn as you go instead of learning everything at once. Thanks to sites like this being here it can be done that way.
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