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Old 12-24-2007 | 05:39 AM
  #3  
haasjj
 
Joined: Apr 2006
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From: Dickinson, ND
Default RE: Li-po batteries.....


ORIGINAL: artman51164

are there chargers that charge batteries faster ? mine takes 1.5hr to 2 hr to charge my 11.1v 1300mah Li-po - what specs for chargers should i be looking at ?

what numbers on batteries determine amount of flight time you'll get ?? ex; 11.1v 1300mah Li-p0, is it the mah or volts ?


whats the best to take out to the field - car battery, extra batteries ???

Their are chargers that will charge faster, but DO NOT CHARGE YOUR LIPO BATTERYS ABOVE FACTORY RECOMENDATIONS, unless you are trying to start a fire and ruin you lipo.
If you don't know the factory recomended charge rate like 1c or 2c ALWAYS CHARGE THEM AT 1C OR LESS. The number that determines flight time is not on the battery because when the battery was built, they had no idea what you were going to use the battery for. In other words flight times change with the same battery pack in different applications and circumstances.

The 11.1 is the voltage rating of the battery the 1300 mah or milliamp hours is how much the battery discharge over time..... well I got this explaination from another site they explain it better than me.>>\/ \/ \/

mAh
Milliamp Hours.

A unit for measuring electric power over time. mAh is commonly used to describe the total amount of energy a battery can store.

A higher mAh rating means the battery can power a device that consumes more power and/or for a longer amount of time. For example, a battery rated at 1500 mAh can power a device drawing 100 milliamps for 15 hours, or a device drawing 150 milliamps for 10 hours.


What do you mean take to the field? to charge from or just extra batterys IMO both I always take extra batterys and some way to charge them.

When looking at chargers simply look for one that will charge to about 5 amps and is lipo compatiable I dont think you will need 5 amp charge rate but its nice to have the extra capicity of the charger.

How much are you discharging your battery before you charge them. Depending on the charger you have you can check this buy looking to see how many mah the charger puts back in. quick example when I charge my 2100 lipo for my Trex the battery will take about 1550 to 1650 mah to come back to a full charge which is about 75-80% of battery capicity. That is a safe range for this battery any more and the battery would be junk, yes I know that oops one battery over discharge was enough for me.