Provari Battery Warning

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Dan Deej

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May 23, 2012
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Manchester, UK
Hello all! So I sort of jumped in at the deep end and bought a provari straight after my 510s. I'm absolutely loving it and it seems to work fine apart from the battery warning light not doing exactly quite what it says on the tin. According to the instructions there should be a series or increasingly rapid red flashing LED warnings before it powers down. Mine just goes from working to not working when the battery hits 3.2/3.1ish and then I get a rapidly flashing light. No pre warning.

Could this be down to new batteries or might it be something else?
 

DaveP

PV Master & Musician
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May 22, 2010
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Are you using the AW 18650 IMR batteries from Provape or the 18350's?

The cutoff is supposed to be 3.2v. Mine blinks slowly at first if I let it go to the battery warning indicator and speeds up if I continue. I seldom let it go that far, though. Batteries last longer if you charge them at 3.5v or 3.6v instead of vaping them to cutoff. Taking them to 3.2v just makes them charge harder and take longer on the charger. I'm using the AW 18650 IMR's.

It takes a few charge cycles to condition the batteries when they are new.
 

markfm

Aussie Pup Wrangler
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Jul 9, 2010
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Beautiful Baldwinsville (CNY)
I would not sweat letting an imr go to the provari cutoff, particularly if you are using a halfway decent battery and charger.

Go back to battery vendor specifications. The newer very popular Panasonic cgr18650ch, for instance, has specs using 3.0V as the cutoff point for discharge on several of the graphs, including cycle life, with 2.5v the cutoff for the total capacity curve. The aw imr spec has 2.5v as the minimum voltage.

http://www.google.com/url?sa=t&sour...u8X-Ag&usg=AFQjCNHEIEUGd1j7rDVJgo5k8eejUnZAZg

The Panasonic datasheet also shows recommended charge, using a good charger approaching cc/cv characteristic, with max current about 1.5 amps.

It is okay to be even more conservative, but it is also absolutely fine to use a good battery per its specifications. You would be fine running the battery down to provari cutoff and, equally, using a charger with decent output. (i use an xtar charger set to 1 amp max with larger batteries, 0.5 amp for smaller).
 
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