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LiPo Battery Warning!!!


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#61 Aaronisthepimp

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Posted 27 October 2009 - 07:45 PM

Why would a 7.4v 1600 mah be different from an identical 7.4 2800 mah isn't mah the capacity? why would i cause extra wear and tear

#62 starcop

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Posted 11 January 2010 - 02:16 PM

Hi guys, On the lipo battery theory the 11.1 is the voltage; "we all know this" and the 1300, 1600, 1800 1ns 2200 mah is the "milli amp hour". Some may not know, that is the length of hour the battery will have output voltage. The higher the "mah" the longer amount of time the battery will perform. The test were done with a 11.1 v 1600 mah 15C battery it doesn't matter if you use the higher mah unless your holding the trigger on full auto for a long, long time. But in any case, 11.1 lipo batteries from several tests I've done are a bad choice for any aeg rifle. The rate of fire is un-realistic, the internals are going to get hot and have a high risk of failure. I've seen rifles last over two minutes of continuous fire, I've seen rifles in the same category last 11 seconds. The best rate of fire, safe voltage and usually doesn't hurt anything and works great is the 7.4 volt lipo battery. They will fit better, you can get a high mah that will last two days of allot of usage. So guys who like a ridiculous rate of fire and a waste of bb's, take it easy, it can fail your mechbox and that means, money, parts and down time. Guys who want reliability and normal wear on your aeg with more game time and good rate of fire. Stick with a 7.4 volt 1300 & higher mah battery minimum 15C discharge rate. "From a perspective"!

for the guy above this. The higher "mah" isn't going to cause more wear. The higher Milli Amp Hour is just longer discharge rate, higher capacity is right.

Edited by starcop, 11 January 2010 - 02:23 PM.


#63 Gorilla

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Posted 17 January 2010 - 06:52 AM

So, with all this battery talk, what do people think of the new Madbull 9.6v 1500mAh 40C battery pack. I suspect it would be less wearing on the internals than a 11.1v, but not sure. Is this something KWA could recommend or is the very high (40C) rate going to cause issues.

G.

#64 chedeath

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Posted 17 January 2010 - 11:29 AM

View PostGorilla, on 17 January 2010 - 06:52 AM, said:

So, with all this battery talk, what do people think of the new Madbull 9.6v 1500mAh 40C battery pack. I suspect it would be less wearing on the internals than a 11.1v, but not sure. Is this something KWA could recommend or is the very high (40C) rate going to cause issues.

G.

that might be a lot for continuous usage.

#65 kevintk

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Posted 12 February 2010 - 04:29 PM

I have a standard King Arms 11.1v mini LiPoly that fits snugly in my handguard.

#66 chedeath

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Posted 12 February 2010 - 04:35 PM

are you suppose to recharge your lipo if you dont use it for a month?

#67 gcw360

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Posted 13 February 2010 - 12:57 PM

View Postchedeath, on 12 February 2010 - 04:35 PM, said:

are you suppose to recharge your lipo if you dont use it for a month?
It can't hurt. However Lipo's hold their charge well. :gun:

#68 gcw360

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Posted 13 February 2010 - 01:03 PM

I just read an article on the WEB regarding LiPo storage. Provided the battery is fully charged when stored, a LiPo can be stored up to 6 months without significant loss of charge. I also read that it is better to store them in a less that fully charged rate. I DO NOT KNOW NOR AM I RECOMMENDING HOW YOU SHOULD STORE YOUR LIPO. What was consistent is that LiPo's will hold a charge very well when stored for a time up to 6 months before significate voltage loss. :gun:

#69 chedeath

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Posted 14 February 2010 - 12:50 AM

View Postgcw360, on 13 February 2010 - 01:03 PM, said:

I just read an article on the WEB regarding LiPo storage. Provided the battery is fully charged when stored, a LiPo can be stored up to 6 months without significant loss of charge. I also read that it is better to store them in a less that fully charged rate. I DO NOT KNOW NOR AM I RECOMMENDING HOW YOU SHOULD STORE YOUR LIPO. What was consistent is that LiPo's will hold a charge very well when stored for a time up to 6 months before significate voltage loss. :gun:

makes sense. I do know, and correct me if wrong, that you should not store lipo if it is dead and not charged........right?

#70 gcw360

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Posted 14 February 2010 - 07:38 AM

View Postchedeath, on 14 February 2010 - 12:50 AM, said:

makes sense. I do know, and correct me if wrong, that you should not store lipo if it is dead and not charged........right?

Correct. Discharging a LiPo too much will harm the battery. A voltage indicator is really a good investment to avoid this during game play. :gun:

#71 chedeath

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Posted 15 February 2010 - 12:34 AM

View Postgcw360, on 14 February 2010 - 07:38 AM, said:

Correct. Discharging a LiPo too much will harm the battery. A voltage indicator is really a good investment to avoid this during game play. :gun:

well, I can tell when energy is running low so I just stop shooting and that seems to be a good indicator.

#72 gcw360

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Posted 15 February 2010 - 07:28 AM

View Postchedeath, on 15 February 2010 - 12:34 AM, said:

well, I can tell when energy is running low so I just stop shooting and that seems to be a good indicator.
I really couldn't say if that's a good way to tell if you are over discharging. That said, a voltage indicator is CHEAP ($5.00) on eBay and they have them in the Pro-Shop. It will sound an alarm when too low and you save the battery. If you are reading this and thinking just one more reason LiPo's are a PIA remember that the voltage indicators are not just a way to save the battery. In the R/C world, when you are flying a $2000 helicopter or plane, you really don't want to run out of power in flight. One crash can ruin your month. :gun:

#73 About 59 Goats

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Posted 15 February 2010 - 12:41 PM

I just ordered the RA-tech 20A Li-Mn battery off ASGI, i'll let you know how it does it the SR-10

#74 chedeath

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Posted 15 February 2010 - 12:55 PM

View Postgcw360, on 15 February 2010 - 07:28 AM, said:

I really couldn't say if that's a good way to tell if you are over discharging. That said, a voltage indicator is CHEAP ($5.00) on eBay and they have them in the Pro-Shop. It will sound an alarm when too low and you save the battery. If you are reading this and thinking just one more reason LiPo's are a PIA remember that the voltage indicators are not just a way to save the battery. In the R/C world, when you are flying a $2000 helicopter or plane, you really don't want to run out of power in flight. One crash can ruin your month. :gun:

cool man. thanks. are they easy to install?

#75 gcw360

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Posted 15 February 2010 - 12:58 PM

View Postchedeath, on 15 February 2010 - 12:55 PM, said:

cool man. thanks. are they easy to install?

They just plug into the balancing plug. Easy-peasy. Just make sure you buy one that is ready to plug in and is for the number of cells you have in your battery. I went with the one in the Pro-Shop because it's ready to go.:gun:

#76 chedeath

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Posted 15 February 2010 - 01:00 PM

View Postgcw360, on 15 February 2010 - 12:58 PM, said:

They just plug into the balancing plug. Easy-peasy. :gun:

oh, nice. that will work and not take up too much room. I will have to look into that. I dont want to ruin any batts.

#77 gcw360

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Posted 15 February 2010 - 01:10 PM

View Postgcw360, on 15 February 2010 - 12:58 PM, said:

They just plug into the balancing plug. Easy-peasy. Just make sure you buy one that is ready to plug in and is for the number of cells you have in your battery. I went with the one in the Pro-Shop because it's ready to go.:gun:
FYI, here is an example of one: http://cgi.ebay.com....em=280402422712

I'm not saying this is the one to buy, I'm just giving an example. Some are wired without a plug so you wire into the circuit. Remember, these were first for the R/C market so the config can be different than what you need. Look around, you want one with an audible alarm, some actually will read the voltage, and it needs to fit in the battery compartment of the gun. Other than that they are straight forward and cost between $5.00 and about $25.00. The Pro-Shop one is 24.95, but it is shrink wrap protected and has the proper plug, not just 3-4 pins. Remember, you get what you pay for. :gun:

#78 chedeath

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Posted 20 February 2010 - 01:10 AM

View Postgcw360, on 15 February 2010 - 01:10 PM, said:

FYI, here is an example of one: http://cgi.ebay.com....em=280402422712

I'm not saying this is the one to buy, I'm just giving an example. Some are wired without a plug so you wire into the circuit. Remember, these were first for the R/C market so the config can be different than what you need. Look around, you want one with an audible alarm, some actually will read the voltage, and it needs to fit in the battery compartment of the gun. Other than that they are straight forward and cost between $5.00 and about $25.00. The Pro-Shop one is 24.95, but it is shrink wrap protected and has the proper plug, not just 3-4 pins. Remember, you get what you pay for. :gun:

cool man. I will look around. check out pro shop.

#79 xKingSizex

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Posted 20 February 2010 - 09:12 PM

View Postgcw360, on 13 February 2010 - 01:03 PM, said:

I just read an article on the WEB regarding LiPo storage. Provided the battery is fully charged when stored, a LiPo can be stored up to 6 months without significant loss of charge. I also read that it is better to store them in a less that fully charged rate. I DO NOT KNOW NOR AM I RECOMMENDING HOW YOU SHOULD STORE YOUR LIPO. What was consistent is that LiPo's will hold a charge very well when stored for a time up to 6 months before significate voltage loss. :gun:

Allizard pulled out a lipo yesterday that he hasn't touched in over 6 months and threw it on the balancer to see what his voltage looked liked. It came up at 12.5v, and he hasn't touched it for that long! The battery is an 11.1, held a full charge this entire time...pretty impressive.
Think he finally sold me on lipos...

#80 gcw360

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Posted 20 February 2010 - 09:16 PM

View PostxKingSizex, on 20 February 2010 - 09:12 PM, said:

Allizard pulled out a lipo yesterday that he hasn't touched in over 6 months and threw it on the balancer to see what his voltage looked liked. It came up at 12.5v, and he hasn't touched it for that long! The battery is an 11.1, held a full charge this entire time...pretty impressive.
Think he finally sold me on lipos...
Once I got a good charger I was sold. Up until then, I forced myself to like them and ruined a few in the process. Now thtere is nothing better IMO. :gun:




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