Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Zanflair,Opus and LiitoKala Tests
#11
(11-20-2018, 11:49 AM)Wolf Wrote: Greetings,
 
So I decided to purchased 4 brand new Samsung 25R batteries and test my charge discharge setup.
Here are the results of the test in a spreadsheet.
Opus seems to have the edge on rated capacity accuracy but lacks in the mR department. The mR readings seem to be closer with the wire mod.
Zanflair is consistently high (8% to 11%) but seems to be more accurate in the mR readings.
LiitoKala is running the test right now and tonight I will have the results also the mR seems to be consistent.
Anyone want to guess the outcome of the LiitoKala mAh test?
Also does anyone have a clue as to the discrepancy between the 2 testers? Different voltage cutoffs maybe?
But I thought this would be an interesting experiment so now I label all batteries with the mAh and put an O, Z, or L next to it to let me know which unit the results came from and can adjust the powerwall build accordingly.
Although a 10% (to the highside) deviance is really not that much. Thoughts?

Wolf

HI

do you mind testing with a foxnovo if you have one

thanks
Reply
#12
I have orderd the Foxnovo F-4S 4-Slots Li-ion Ni-MH Ni-CD LCD Intelligent Battery Charger.


I will test it and report the results as soon as it arrives.
 
Wolf
MissSolar likes this post
For Info Google Drive

Great ABB shunt breaker seller River City Industrial
Great prices and superb service.
 [Image: em2566%20(1)__19172.1521541365.jpg?c=2]

Not your average Wolf       
            Cool
Reply
#13
(11-30-2018, 03:18 PM)MissSolar Wrote: HI

do you mind testing with a foxnovo if you have one

thanks


Foxnov tested.
 
Results are OK little on the low side but that’s better then over.
 
don’t like the tester because of other reasons
1 no IR measuring even if it would be questionable.
2 can’t turn the beeper off
3 cannot set an auto charge discharge and recharge. Must wait for charge to finish on ALL cells to initiate a discharge test and recharge.

 
 
Wolf
For Info Google Drive

Great ABB shunt breaker seller River City Industrial
Great prices and superb service.
 [Image: em2566%20(1)__19172.1521541365.jpg?c=2]

Not your average Wolf       
            Cool
Reply
#14
(12-13-2018, 02:11 PM)Wolf Wrote:
(11-30-2018, 03:18 PM)MissSolar Wrote: HI

do you mind testing with a foxnovo if you have one

thanks


Foxnov tested.
 
Results are OK little on the low side but that’s better then over.
 
don’t like the tester because of other reasons
1 no IR measuring even if it would be questionable.
2 can’t turn the beeper off
3 cannot set an auto charge discharge and recharge. Must wait for charge to finish on ALL cells to initiate a discharge test and recharge.

 
 
Wolf

Thanks for your reply

the beeper IS an issue.... to discharge and recharge do long press on the button instead of seeing CHG you will see CAP  that will charge to max , discharge (testing capacity) and recharge to 4.2V.

I also saw that you made your own battery holder have you tried t design the common one most of us buy?

regards
Wolf likes this post
Reply
#15
(12-13-2018, 02:46 PM)MissSolar Wrote:
(12-13-2018, 02:11 PM)Wolf Wrote:
(11-30-2018, 03:18 PM)MissSolar Wrote: HI

do you mind testing with a foxnovo if you have one

thanks


Foxnov tested.
 
Results are OK little on the low side but that’s better then over.
 
don’t like the tester because of other reasons
1 no IR measuring even if it would be questionable.
2 can’t turn the beeper off
3 cannot set an auto charge discharge and recharge. Must wait for charge to finish on ALL cells to initiate a discharge test and recharge.

 
 
Wolf

Thanks for your reply

the beeper IS an issue.... to discharge and recharge do long press on the button instead of seeing CHG you will see CAP  that will charge to max , discharge (testing capacity) and recharge to 4.2V.

I also saw that you made your own battery holder have you tried t design the common one most of us buy?

regards

Aha OK i will give that a try long press. Big Grin

Battery holder?  which one are you talking about? 

Wolf
For Info Google Drive

Great ABB shunt breaker seller River City Industrial
Great prices and superb service.
 [Image: em2566%20(1)__19172.1521541365.jpg?c=2]

Not your average Wolf       
            Cool
Reply
#16
(12-13-2018, 02:56 PM)Wolf Wrote:
(12-13-2018, 02:46 PM)MissSolar Wrote:
(12-13-2018, 02:11 PM)Wolf Wrote:
(11-30-2018, 03:18 PM)MissSolar Wrote: HI

do you mind testing with a foxnovo if you have one

thanks


Foxnov tested.
 
Results are OK little on the low side but that’s better then over.
 
don’t like the tester because of other reasons
1 no IR measuring even if it would be questionable.
2 can’t turn the beeper off
3 cannot set an auto charge discharge and recharge. Must wait for charge to finish on ALL cells to initiate a discharge test and recharge.

 
 
Wolf

Thanks for your reply

the beeper IS an issue.... to discharge and recharge do long press on the button instead of seeing CHG you will see CAP  that will charge to max , discharge (testing capacity) and recharge to 4.2V.

I also saw that you made your own battery holder have you tried t design the common one most of us buy?

regards

Aha OK i will give that a try long press. Big Grin

Battery holder?  which one are you talking about? 

Wolf

Mistake on battery holder... sorry
Reply
#17
Here is the conclusion of the charger tests.

Review of common 4 cell chargers.
This is an independent review of 4 cell chargers / analyzers, referred to as C/A from now on, that we all use.
Alphabetically evaluated no previous preference was give to any charger.
All of these chargers where initially tested with 4 brand new Samsung 25F cell for mAh readings Voltage consistency and IR consistency.
All chargers use a spring type slider to insert the cells between the contacts.
Only 18650 Cells have been used in these tests as it is what we mostly use.
All cells are relatively easy to insert into the C/A  but a pain to remove on all.
I will just give you the quick lowdown and not go into how to use the tester as the instruction manuals will tell you that.
The tested cells are brand new Samsung 25R.
The results are published below.


Foxnovo Digital Charger 4S

The Foxnovo ia a small compact C/A with limited features.
Slots are not independently controllable but if all you want to do is charge and check capacity
this is what it does and does it well. No IR info but gives V and mAh.
Accuracy is close in mAh 1 to 4 percent lower.


LiitoKala Engineer Lii-500:

The LiitoKala is a small and compact C/A with some nice features.
It has independent slot selection so you can set each slot to the parameters you want.
The IR readings are close and pretty consistent even with used cells
The mAh are slightly higher than the cell rating about 2 to 4.5 percent.


Opus BT-C3100

The Opus is a medium sizeded C/A.
It has independent slot selection so you can set each slot to the parameters you want.
The IR readings are all over the place and very inconsistent The manual says to deduct at least 30mΩ from you reading as contact resistance is included in the IR measurement.
The IR test requires that you enter a separate mode.
I do like that if you hit the slot button 5 times it selects all the slots for you to be able to change the mode and current globally.
Capacity measurements are close and are 1.5 to 4 percent high.

Zanflair

The Zanflair is a large sized C/A
It has independent slot selection so you can set each slot to the parameters you want.
The IR readings are displayed without changing the present mode you are in all you need to do is push the slot button. It scrolls through all the parameters for that cell.
IR is high but close on a new cell but salvaged cells seem to read high. Maybe because of the artifacts left on the cell contacts. 
It does not remember the last mode and defaults to charging when a cell is inserted. If you insert 4 cells very quickly and you push the mode button 3 times quickly it will put all slots into NOR mode.
Capacity measurements are 8 to 11 percent high.

XTAR Dragon VP4 Plus

The XTAR is a very large C/A

It has semi independent slot selection you can set slot 1 & 4 and 2 & 3 independently.
IR readings are achieved by plugging in the probes supplied with the unit and touching them together to enter into IR mode. I was surprised at how close the IR readings where with just a 2 wire system. Pretty much on the money.
the mAh readings where -4 to +6 percent.
The unit has no voltage readings showing on the display but it shows the current going in while charging and displays the discharge current. A Little confusing at first as when done it flashes both readings back and forth. Leds on the slot show what stage it is in.

Nitecore SC4

The Nitecore SC4 is a medium sized charger only.
It has kind of a good / bad IR indicator and does show a value although mostly higher than actual but not by much.
Does show how much mAhs you put into the battery.


So in conclusion:
I do like the Foxnovo and the LiitoKala and a close 3rd the Opus as they are close to accuracy on new cells with mAh readings.
If I didn't have a dedicated IR tester (YR1030) I would go with the LiitoKala or the XTAR.
Since I do have an IR tester my choice is the Foxnovo it is compact can charge  and discharge at 1A or 500mA and is simple to use. The only qualm I have is the beeping. That can be solved with a little DIY magic. The Opus which is my 3rd choice is overall OK but has some flaws as we all know.
Does anyone want to buy my 3 Zanflairs? I'm willing to sell them cheep. Big Grin

You can see my spread sheet at https://drive.google.com/drive/folders/1...3iSECb8iIs

Wolf
MissSolar likes this post
For Info Google Drive

Great ABB shunt breaker seller River City Industrial
Great prices and superb service.
 [Image: em2566%20(1)__19172.1521541365.jpg?c=2]

Not your average Wolf       
            Cool
Reply
#18
I wonder if the above would NOT appear in the FAQ.
1 kWp in Test
4 kWh battery target - plus Mobile Home battery
Ultra low cost
Electronics ? No clue. Am machinery engineer.
Reply
#19
(12-16-2018, 03:52 PM)Cherry67 Wrote: I wonder if the above would NOT appear in the FAQ.

Like this? https://secondlifestorage.com/t-LiitoKal...rs-Testers

Wolf: Mind if we download the spreadsheet so we can have the attachment local? You would just need to inform us of any updates so we can replace the file.
Proceed with caution. Knowledge is Power! Literally! Cool 
Knowledge is Power; Absolute Knowledge is Absolutely Shocking!
Certified 18650 Cell Reclamation Technician

Please come join in general chit-chat and randomness at Discord Chat (channels: general, 3d-printing, linux&coding, 18650, humor, ...)
(this chat is not directly affiliated with SecondLifeStorage; VALID email req'd)
Reply
#20
(12-16-2018, 04:06 PM)Korishan Wrote:
(12-16-2018, 03:52 PM)Cherry67 Wrote: I wonder if the above would NOT appear in the FAQ.

Like this? https://secondlifestorage.com/t-LiitoKal...rs-Testers

Wolf:  Mind if we download the spreadsheet so we can have the attachment local? You would just need to inform us of any updates so we can replace the file.

Urrrmm - i do NOT wonder if the "above" would appear in the FAQ. Big Grin
1 kWp in Test
4 kWh battery target - plus Mobile Home battery
Ultra low cost
Electronics ? No clue. Am machinery engineer.
Reply


Forum Jump:


Users browsing this thread: 2 Guest(s)