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Lipo low voltage

SG Crawlers Forum :: RC Talk :: The Electronics Department

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Lipo low voltage

Post by ket2175 on Sat Dec 10, 2011 6:21 pm

Is lipo Low Voltage Alarm waterproof? Anyone here know? Thanks

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Re: Lipo low voltage

Post by RTECH on Sat Dec 10, 2011 9:28 pm

ket2175 wrote:Is lipo Low Voltage Alarm waterproof? Anyone here know? Thanks


NO!

No need to use if you buy the RTR wraith. The wraith 's AE-2 ESC have lipo cutoff function.

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Re: Lipo low voltage

Post by ket2175 on Sat Dec 10, 2011 11:18 pm

RTECH wrote:
ket2175 wrote:Is lipo Low Voltage Alarm waterproof? Anyone here know? Thanks


NO!

No need to use if you buy the RTR wraith. The wraith 's AE-2 ESC have lipo cutoff function.


This LVA is for my Summit, I know RTR Wraith no need LVA. Now looking for people to help me buy Wraith.

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Re: Lipo low voltage

Post by ket2175 on Sat Dec 17, 2011 11:39 am

Lipo question again, when I charge my 3600mah lipo . It only peak to 1330mah , then the charger stated charge complete. But the battery is 3600mah , does this mean my battery is going to spoilt already. Cause the battery very long already. And the ex owner just cut off the balancer plug.

Anyone here know the ans to my question, many thanks.

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Re: Lipo low voltage

Post by boolean21 on Sat Dec 17, 2011 12:05 pm

ket2175 wrote:Lipo question again, when I charge my 3600mah lipo . It only peak to 1330mah , then the charger stated charge complete. But the battery is 3600mah , does this mean my battery is going to spoilt already. Cause the battery very long already. And the ex owner just cut off the balancer plug.

Anyone here know the ans to my question, many thanks.


No necessary spoilt... Could be the battery is not fully drained out yet...
Go buy a connector from sim lim tower and connect back the balancer plug lor, more convenient...

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Re: Lipo low voltage

Post by RTECH on Sat Dec 17, 2011 12:16 pm

ket2175 wrote:Lipo question again, when I charge my 3600mah lipo . It only peak to 1330mah , then the charger stated charge complete. But the battery is 3600mah , does this mean my battery is going to spoilt already. Cause the battery very long already. And the ex owner just cut off the balancer plug.

Anyone here know the ans to my question, many thanks.


Bro you only use up half of your lipo power. Lipo capacity does not drop that much, the most 300mah in a year and will stablise. The charger only charge up wat you have use up.

If that previous owner did not balance charge, the possibility that the charger only sense the output voltage. This is very dangerous coz the charger will overcharge a particular cell. One of the cell may become weak and you will not get the full power even at full charge.

Lipo is very flammable , please charge with caution and follow the battery instruction.

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Re: Lipo low voltage

Post by ket2175 on Sat Dec 17, 2011 2:51 pm

Ok thanks both for the info. I just order 2 5000 mah lipo from hobbyking.

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Re: Lipo low voltage

Post by ket2175 on Mon Dec 19, 2011 9:16 pm

I just discharge my lipo battery, with Tahmazo T15 charger.

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Re: Lipo low voltage

Post by RTECH on Mon Dec 19, 2011 9:36 pm

ket2175 wrote:I just discharge my lipo battery, with Tahmazo T15 charger.


DO NOT DISCHARGE YOUR LIPO TOO LOW!!!

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Re: Lipo low voltage

Post by ket2175 on Mon Dec 19, 2011 9:52 pm

RTECH wrote:
ket2175 wrote:I just discharge my lipo battery, with Tahmazo T15 charger.


DO NOT DISCHARGE YOUR LIPO TOO LOW!!!


Ya I know bro, thanks RTECH Staff Sergent.

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Re: Lipo low voltage

Post by purexc on Mon Feb 20, 2012 3:03 pm

I have a question , why do you have To discharge lipos ? And when do you have to discharge the,? After every drive?

Cheers Surprised

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Re: Lipo low voltage

Post by RTECH on Mon Feb 20, 2012 5:28 pm

purexc wrote:I have a question , why do you have To discharge lipos ? And when do you have to discharge the,? After every drive?

Cheers Surprised


Because if the lipo voltage is more than the storage voltage, that is 3.8v per cell. There is a tendency that the lipo will bloat by itself.
It is not necessary to discharge the lipo after every run. It depends on how much voltage your lipo left. If is in between 3.3v to 3.8v. You can just leave it. If less than 3.3v , you will have to charge it coz too low voltage can damage the lipo cell.

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Re: Lipo low voltage

Post by purexc on Mon Feb 20, 2012 5:59 pm

But how am I suppose to know that the voltage is below 3.3v ? Is it shown on the charger itself?

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