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Vanon Batteries .... Yeh - did they dupe me?
#11
Thanks for taking even more time with me on this Willis, and thanks for all the great photos. I'll try to take better photos of the bms today. Think I've complete five 1amp cycles so far and all have been near enough to 3000mah. I'm not debating the initial capacity of the cells rather I got Knowen Fantastic cells with a good rep - Others have got cells that appear to be from a manufacturer with unknown quality control & no data sheets to compare against
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#12
I really don't understand why you're continuing to test the products the company sent you ...

The suspicion is they custom made these with better cells , so the product you got is not the one people will buy in the shops..

As you're doing already , the way forward is to ask your viewers to take a peep inside the packs they buy , take photos or just test the capacity without breaking them up. ... they are billed as 4AHr and 6AHr ... very easy to test without undoing a screw.
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#13
Hi Everyone,

I saw the hbpowerwall Vanon Ryobi youtube & thought I'd give Vanon a try. I was previously given dead laptop batteries & salvaged a couple hundred 18650's. I use two Opus BT-3400's & a LiitoKala to 2 pass test. Building 3s6p packs for an electric bike & other projects. I have not been able to get more free laptop batteries & have been looking at the economics of used cells versus new, hah, probably like many people.

Initially I ordered two Vanon Dell 9 cell 7800mah 11.1v packs. Eh, not so good, bad welds in one, cells have tested at about 1800mah on the first pass.

Then I ordered two of the Ryobi 6.0 Ahr packs & they came today! Out of the box the first one showed 2 bars, appeared to charge okay on the intelliport charger. Didn't have any beefy power resistors but did have some 12v ptc heating elements so I made a really ugly test rig with heat sinks. Followed a testing idea posted on  the budgetlightforum.com, thread 46209 and the pack seems to be the real deal. On the first run I gave it a 6amp / 105 watt load & it took a bit more than 48 minutes for the bms to cut off at low voltage. I ran it through a power meter, the PZEM-031 6.5-100v 20A power display & it looked like it output 90+ watt hours. It calculates to more than 6 amp hours keeping in mind the ptc is a variable resistor which sort of messes up the calculation. 

I'm charging the 2nd Ryobi pack & will repeat this process a couple times on each pack. The heat sinks got toasty hot, I added a 3rd ptc to push the load closer to 10amps & added a fan just 'cuz. I can probably hang a few more things on the rig to create a 15amp or so total load.

I think I can be pretty lazy & just let the PZEM capture the watt hours, resetting the meter after each run. I think a 6 amp 18 volt pack ought to output about 108 watt hours. In the neighborhood of 10 watts per cell.

There are probably other devils in the details, quality issues, etc. but first impression is the Vanon Ryobi pack does produce something close to rated output. I'll post more results as I get them.
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#14
My beef isn't with the output (yet) it's just I promoted knowen trusted Samsung cells - and no-one-else has got them that I know of yet. I need to upload more tests from my opus cycles i'll do that now.
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#15
I have the pink cells. Mxz18650 16L23,16K20 etc. Purchased seeing the brand available and your video. Considerable performance in angle grinder. Thanks for bringing this to light.
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#16
Quote:Use for battery pack maker(s)/ system integrator(s) only. 
Online e-commerce sales, sales to individual consumer, or sales for e-cigarette use are strictly prohibited.

For anyone that wants pics of legit LG cells with that notice, put one of those sentences into google.
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#17
Hi M8,

I bought two of these based on the review you gave, have just opened one of mine and they have green cells labeled LR1865BI Can't find any info on them but I bet they are not 6Ah packs.. Found the data sheet for them. They are 1500mAh cells... http://www.all-battery.com/datasheet/302...asheet.pdf
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#18
(06-18-2018, 06:10 AM)ozz93666 Wrote: I really don't understand why you're continuing to test the products the company sent you ...

The suspicion is they custom made these with better cells , so the product you got is not the one people will buy in the shops..

As you're doing already , the way forward is to ask your viewers to take a peep inside the packs they buy , take photos or just test the capacity without breaking them up. ... they are billed as 4AHr and 6AHr ... very easy to test without undoing a screw.
That is what I would like to confirm Ozz, did they set up me up to lie to the community or not. 

(06-23-2018, 11:49 AM)Adiete Wrote: I have the pink cells. Mxz18650 16L23,16K20 etc. Purchased seeing the brand available and your video. Considerable performance in angle grinder. Thanks for bringing this to light.
Thank-You for taking the time to share Adiete, another for the 'Not Samsung' vote Sad
(06-23-2018, 05:46 PM)station240 Wrote:
Quote:Use for battery pack maker(s)/ system integrator(s) only. 
Online e-commerce sales, sales to individual consumer, or sales for e-cigarette use are strictly prohibited.

For anyone that wants pics of legit LG cells with that notice, put one of those sentences into google.
Awesome thanks for the share Station, I've tried to read it and it's near Impossible - you'd think for a safety warning would be easily readable - another reason to think the LG aren't really LG 
(06-23-2018, 06:06 PM)pgprentice Wrote: Hi M8,

I bought two of these based on the review you gave, have just opened one of mine and they have green cells labeled LR1865BI  Can't find any info on them but I bet they are not 6Ah packs..  Found the data sheet for them.  They are 1500mAh cells... http://www.all-battery.com/datasheet/302...asheet.pdf

I'm sorry you got those cells pgprentice - and thank you for taking the time to share the datasheet - possible for any photos too?
If you'd like to support the forum please feel free to use my affiliate links to purchase all kinds of stuff for your projects 
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Banggood -  https://goo.gl/FF2v6W
Battery Hookup - http://bit.ly/2Oe9PLW 
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#19
@HBPowerwall: What are you going to do after you get all the tallies/pictures together? Are you just going to post a video with the finds and recommend others to not to buy them, or something a bit more aggressive?
Proceed with caution. Knowledge is Power! Literally! Cool 
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#20
Undecided - but if I can prove beyond a doubt I have no choice but to action it publicly
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Banggood -  https://goo.gl/FF2v6W
Battery Hookup - http://bit.ly/2Oe9PLW 
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