Ergo60
Senior Member
Posts: 186
Loc: South Haven,MI USA
Reg: 09-19-01
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 01-23-02 05:47 AM - Post#5196
In response to polstery
Phil, if the load resistor in your ESV is the 27 ohms as stated, then the actual load for an average of 4.8 volts would only be 177ma. My battery tester uses a 9 ohm resistor that gives me an average load current of around 533ma. This is more inline with what the heli actually draws on average. Also, you should always remember to leave the load on for at least 15 seconds and watch the reading to see if it drops. If I see to much of a drop then I know that the battery pack needs a re-charge. I also plot the discharge curves for my pack at least once a month and save the data to monitor for trends in the discharge time. I built a charger/cycler that plots this data through a serial port into excell. I first charges, and tops off the pack and then discharges it while constantly monitoring the current and voltage. We all place a really large burden on our batteries, and they are the most important part, so treat them well, and replace them when needed, they are the cheapest preventative part we have. Also remember when you buy new ones to recycle the old ones.
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