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I have zenith director model- z8081 purchased 5 years back, i want to replace the battery, a battery life which lasts atleast for 3-4 hrs

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This is an expensive buisness,you can get high endurance replacements (copies) or the genuine thing.
Youll have to consult Manufacturer for estimated life.
And use correct/original adapter not to ruin this lifespan of a new/ replacement battery

Posted on Sep 07, 2010

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Wireless driver for z8081


Please visit the link provided below :

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On the Galaxy display you could see what is the remaining battery life time as calculated by the software. Normally after you replaced the batteries you are supposed to reset this counter using specific software by the manufacturer. According to your information you have replaced the batteries 3 times in 5 years period. This is not normal. Nevertheless since the last replacement in 2008 it appears that the battery are now reaching the end life, which is generally 3-5 years life expectancy.

I would review the following of the assumption that the UPS is fully operational and the charging system is working.

1. Do a load test or a battery impedance test to verify the batteries are good
2. I would look at the battery life time specification, whether it is 3-5 years, 5-7 years ect.
3. Check the room temperature, every 10 degrees Celcius above 25 deg reduces battery life time by half
4. Check the number of power failures/ duration of these power failures and if possible what load were on the UPS at the time of the power failures.
I hope this will help. If all verifications are to specifications, then most likely it is a software problem

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