how low can a 6 volt be and be safe
11-27-2008, 12:12 PM
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how low can a 6 volt be and be safe
Hellow everyone I have a 6 volt battery pack I use in my h9 spitfire and I flew it tell it said 6.20 and quit I was woundering if you could go lower and be safe, any help please thanks. ps:everyone have a happy thanksgiving and a nice day flying if you got weather like I do today!
11-27-2008, 12:47 PM
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RE: how low can a 6 volt be and be safe
I was testing my MiHM 6 volt with a expanded scale voltmeter and it did not drop off untill around 5 volts. It took a long time to get from 6v to 5v.
but I don't know if the expanded scale voltmeter puts the same load on as a plane. If they are digital it may brop off quicker. I have flown my reg. planes with 4 reg. servos down to 5.4 volts without a problem.
but I don't know if the expanded scale voltmeter puts the same load on as a plane. If they are digital it may brop off quicker. I have flown my reg. planes with 4 reg. servos down to 5.4 volts without a problem.
11-27-2008, 01:59 PM
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RE: how low can a 6 volt be and be safe
If you stop flying at 6.0 volts, you are only using a fraction of the battery capacity. Under a 300 mA load, if the battery reads 5.5 or higher, you still have some battery left. It takes a long time to go from 6.0 volts to 5.5 volts. from 5.5 to 5.0 volts does not take very long. From 5.0 to 4.0 happens very quickly.
11-28-2008, 01:51 AM
#6
RE: how low can a 6 volt be and be safe
ORIGINAL: poison
Hello everyone I have a 6 volt battery pack I use in my h9 spitfire and I flew it tell it said 6.20 and quit I was woundering if you could go lower and be safe, any help please thanks. ps:everyone have a happy thanksgiving and a nice day flying if you got weather like I do today!
Hello everyone I have a 6 volt battery pack I use in my h9 spitfire and I flew it tell it said 6.20 and quit I was woundering if you could go lower and be safe, any help please thanks. ps:everyone have a happy thanksgiving and a nice day flying if you got weather like I do today!
G'day Mate,
Nicads or NiMh batteries have a nominal voltage of 1.2 volts per cell, & they are said to be flat at 1.1 volts per cell, so a 6 volt or 5 cell pack is flat at 5.5 volts or will be very soon when it gets to that voltage, so you still have most of the capacity left at 6.2 volts, when you stopped flying.
11-28-2008, 01:29 PM
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RE: how low can a 6 volt be and be safe
Hi!
A 123 is a new type of Lipo cell. A cell that don't explode or burn! DeWalt has them in their drilling machines. I got mine from Hi Models in China
A 123 is a new type of Lipo cell. A cell that don't explode or burn! DeWalt has them in their drilling machines. I got mine from Hi Models in China
11-29-2008, 11:38 AM
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RE: how low can a 6 volt be and be safe
Oh, gotcha... I haven't crossed over to Lipos, yet. I'm still in the NiCad and NiMhd Batteries. 4 and 5 Cell versions. My models are small enough to fit in my truck so no need to upgrade yet.
11-29-2008, 05:42 PM
#11
Senior Member
RE: how low can a 6 volt be and be safe
What DMcQuin said, you will be perfectly safe to fly down to 5.5 volts; at that point you will still have 15 to 20% safety factor. If you are recharging at 6 volts, you are only using about 20% of the available time.
