980 battery performance

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980 battery performance

Postby gregj » October 4th, 2018, 8:15 am

I got my 980 on the 26th of Nov 2015. It has been a while.
It has performed 713 jobs, running time of 682.5h.

Question is, how do I know the battery is still up to snuff, and moreover - how do I find out the remaining capacity of that battery. It's a regular default stock battery that came with the hoover. On Monday, it has run out of power after 58 minutes - and stopped halfway through the room - presumably on its way to the charger. You might say, I do interpret this as a sign.

Thoughts?
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Re: 980 battery performance

Postby vic7767 » October 4th, 2018, 9:24 am

The common failure on the Lithium pack is that a single cell will go bad thus creating your symptom. Three years operational service is on the fringe. Most Lithium OEM packs average around five years.
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Re: 980 battery performance

Postby gregj » October 4th, 2018, 11:25 am

ok, so it sounds like mine should still have some life in it left.
Any way to test the capacity?
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Re: 980 battery performance

Postby vic7767 » October 4th, 2018, 12:54 pm

You can connect a 12vdc auto bulb (like a turn signal or running light). The lamp should remain bright for about 70 minutes for the OEM 1800 mAH pack.
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Re: 980 battery performance

Postby gregj » October 4th, 2018, 5:09 pm

Any chance to do it with a meter? I'm good with those :-)
If it's 1800mAH, it should allow me to draw 1.8A for an hour. I need to find something that draws 1.8A. What's the voltage? It's probably on the battery itself.
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Re: 980 battery performance

Postby vic7767 » October 4th, 2018, 5:16 pm

You could use a meter with close to 2 amp load. The pack voltage is 14.4 but when fully charged should read about 16.4 vdc. Time how long the pack remains above 12 vdc.
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