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HelicopterMain Discussion › lipo ?
12-28-2008 09:31 PM  8 years agoPost 1
flipurbird

rrApprentice

sevierville,tn

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what should be the total voltage on a 7.4 lipo when fully charged is it 7.4 or more?

I simply refuse to tippy toe through life just to safely arrive at death.

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12-28-2008 09:38 PM  8 years agoPost 2
Heli 770

rrProfessor

USA.

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Around 8.40volts.

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12-28-2008 09:50 PM  8 years agoPost 3
flipurbird

rrApprentice

sevierville,tn

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so a lipo that reads 7.4 or lower is bascially dead

I simply refuse to tippy toe through life just to safely arrive at death.

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12-28-2008 09:56 PM  8 years agoPost 4
trexdave

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parma OH

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3.7,7.4,11.1 and so on is nominal voltage a single cell dead is about 3.0 to 3.3 depending on how low you want to go but no lower than 3.0 then 4.2 is fully charged per single cell.
OH then you have cells like airthunder and that is a different story
Dave

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12-28-2008 10:01 PM  8 years agoPost 5
Heli 770

rrProfessor

USA.

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No, The 7.4 volts is not the voltage of the pack fully charged. Anything under 3volts per cell is close to death or dead. Use the 80% rule and only discharge any lipo batt packs to 3.80volts per cell.

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12-28-2008 10:12 PM  8 years agoPost 6
flipurbird

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sevierville,tn

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well i accidentlly discharged the pack to 3.4 so did i damage it

I simply refuse to tippy toe through life just to safely arrive at death.

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12-28-2008 10:16 PM  8 years agoPost 7
Heli 770

rrProfessor

USA.

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3.4volts, is that per cell?

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12-28-2008 10:20 PM  8 years agoPost 8
flipurbird

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sevierville,tn

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no whole pack i thought i charge it last night i checked pack before flight and meter said it was 7.4 so i figure get ine flight in before dark and all of a sudden the failsafe went off and had to auto down scared me to hell so i checked batt to see what went wrong and it read 3.4 so now im wonderin if it will hold a charge

I simply refuse to tippy toe through life just to safely arrive at death.

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12-28-2008 10:29 PM  8 years agoPost 9
Heli 770

rrProfessor

USA.

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When you went flying with 7.4volts you only had the batt pack at 10% charged. Your batt should be toasted! I don't think your charger will even try to charge it.

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12-28-2008 11:27 PM  8 years agoPost 10
flipurbird

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sevierville,tn

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i got lucky guys i just charge it and fly it again and hold charge for three tanks whoo hoo

I simply refuse to tippy toe through life just to safely arrive at death.

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12-28-2008 11:28 PM  8 years agoPost 11
flipurbird

rrApprentice

sevierville,tn

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only a 20 batt but hell if i buy a new batt id rather have a spare then still only one batt

I simply refuse to tippy toe through life just to safely arrive at death.

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