Discharged at 0.5A to 3v .. Now some manufacturers say you can discharge to 2.75 or 2.5 Volts under load ..
Anyhow , the hobby charger stops at 3v under load = 2433mAh to 3v ..
Being Sanyo there is no protection circuit ..
—
Always remember , the easiest thing in the world to do , is to expel hot air from your lungs and through some vocal chords .. The resulting sound may , or may not be worth listening too ….
Well , after charging to 4.2v , and then discharging to 3v under load [ 0.5A ] I got some 2486mAh ...
If I were able to discharge lower it may have come close [ may have ] to the claimed minimum .
So keep in mind that discharge is between 4.2v and 3v ..
—
Always remember , the easiest thing in the world to do , is to expel hot air from your lungs and through some vocal chords .. The resulting sound may , or may not be worth listening too ….
Always remember , the easiest thing in the world to do , is to expel hot air from your lungs and through some vocal chords .. The resulting sound may , or may not be worth listening too ….
Claimed capacity 600mAh - first one tested gave 568mAh on a Turnigy Accucell 6 at 500mA discharge rate. Semi-button top.
Hold output on a demanding AA (It does have an XM-L in it) light better than a flame Trustfire - both freshly charged, the IMR on its first cycle, the Trustfire with less than 5 charges.
—
The numbers from my light tests are always to be found here.
Replentished my supply of Eneloops from www.hkequipment.net last week. 8 AAs for $29.99. (ordered on 17/2 arrived 4/3 in Aus)
These are the 2nd gen Eneloops Part No 3UTGA (The ones with "up to 1500 recharges" & "retains 75% after 3 years" on the front of the packet ).
I have tested the 1st 4 on a Maha c9000.
Out of the packet:
1423
1417
1417
1410
After charge/discharge at 1amp:
2023
2014
2013
1999
I am running a break-in cycle on the other 4.
(I love these batteries)
Cheers,
Tim
I think I love my eneloops more than my flashlights. I have 100 (72 aa & 28 aaa) and I'm still thinking about getting more. I think my next set of eneloops will be those glitter ones since I already have the white, costco, tones, and XX eneloops. I have so many that I don't get to use them but I do maintenance on them with my C9000's. It's just as fun to me. :bigsmile:
You just gotta love them eneloops.
—
Don wrote:
"But as I said long ago, you are more likely to be killed by a dead fish dropped by a seagull in the Sahara Desert than by a lithium ion
Semi-button top - the button protrudes about 0.1mm from the top of the cell.
Unprotected
Diameter 14.2mm, length 49.9mm. For comparison, an Eneloop with my calipers measures 50.1mm length and 14.3mm diameter. Both lengths include the button.
Capacity at 1A discharge to 3V (Turnigy Accucell 6) - 558mAh. Will try the other three to get average numbers over four of them.
—
The numbers from my light tests are always to be found here.
What can I say , thats bad , real bad .. Hopefully this will give anyone reading these posts some idea of what there getting when they buy the cheap chinese cells .
—
Always remember , the easiest thing in the world to do , is to expel hot air from your lungs and through some vocal chords .. The resulting sound may , or may not be worth listening too ….
These come with a 100 % money back guarantee (which I feel I will be claiming soon)
Initial discharge results at 500 ma.
1. 0
2. 4
3. 2
4.0
These were discharged and showing less than 1 volt.
I am currently charging and then will discharge but I am not expecting good results. They are made in China and it does say they should be charged before use.
Hmm I may be proven wrong
Charged at 500 mah
1. 1.44v 883 mah
2. 1.46v 1061 mah *
3. 1.46v 1091 mah *
4. 1.46v 1196 mah *
* They sat on 1.46 volt for a long time and kept taking charge??
I may see good discharge results. However they are NOT LSD and in real use would be poor I imagine.
results
1. 785 mah
2. 794
3. 814
4. 822
on maha c 9000
Quite good but for the price I'd rather have eneloops. Will recharge and leave for a week and then discharge.
Always remember , the easiest thing in the world to do , is to expel hot air from your lungs and through some vocal chords .. The resulting sound may , or may not be worth listening too ….
Ok , discharged the 2400mAh Xtar cells @ 500mAh from 4.2v down to 3v ..
Cell 1 did some 2468mAh
Cell 2 did some 2485mAh
Now this is quite a first for me , cells actually exceeding stated capacity .. [ Well done Xtar ] , Its late , and I will discharge the 2600's tomorrow .
Always remember , the easiest thing in the world to do , is to expel hot air from your lungs and through some vocal chords .. The resulting sound may , or may not be worth listening too ….
The first Xtar 2600 built on a Sanyo 2600 has been discharged .. And much like the Sanyo I tested a little while ago Here , the capacity tested was very close ..
2433mAh for the Unprotected Sanyo , and some 2448mAh for the Xtar [ Sanyo 2600 based ] , Im currently waiting to put in the second cell , and I want to time it so it will finish a little after I get back from the Flashlight Meet tonight .
Ok , back from the meet , and the second one went 2438mAh .
Next will be some discharge [ for current ] tests ... , So hopefully will be able to post a review shortly .
Always remember , the easiest thing in the world to do , is to expel hot air from your lungs and through some vocal chords .. The resulting sound may , or may not be worth listening too ….
I got mine from Ebay - [ are they the same ? lot ]
—
Always remember , the easiest thing in the world to do , is to expel hot air from your lungs and through some vocal chords .. The resulting sound may , or may not be worth listening too ….
In case anyone was interested, just finished up recording a rundown test on a 11.1V li-ion protected pack made out of the Sanyo 2700 mAH cells (UR18650ZT).
The test was using a 10W halogen bulb as a load, so almost a pure resistive load. Average current draw was around .8 amps. Results were very near the ideal 2700 mAH capacity (at room temp). More importantly, the percentage increase in run time over the 2200 pack (roughly 23%) was right on the money. Cells came from SoShine. According to the manufacturer's specs, you do pay a hefty penalty with discharge currents above 1C (2.7 amps).
You can see the voltage vs. time plot over on my site:
These cells aren't entirely new -- I bought them together with the C9000 a couple of weeks ago -- but they've only had a break-in and/or refresh/analyze cycle and a couple of very partial cycles in a flashlight for a couple of the cells. I ran two cycles of 500mA charge/500mA discharge and am reporting the second (which was 10-15mAh higher), so call it the fourth cycle overall for the cells.
I don't have calipers (so I eyeballed size...) Edit: Measured one at 44.30mm x 10.17mm with digital calipers.
The other package of NiMH cells I bought together with the C9000. These have been discharged (didn't write down the numbers, but around 1700-1800 mAh out of the package) and then given a forming charge. They then sat a couple of weeks until I started them cycling for this test. They're actually still in the charger on a third cycle, but the numbers are quite close between the first two cycles, with two cells showing higher capacity in the second and two cells lower (differences of 11, -25, -17, and 10 mAh).
[Edit: the numbers for the third cycle were virtually identical (differences +1, 0, -2, and +4 mAh), so I'll let the 2nd-cycle numbers above stand.]
The reported capacities during the break-in cycle were also around 2200 mAh, so it's not simply voltage sag at 1 amp causing the low numbers.
Edit2: Digital calipers say two of the cells are 50.32mm x 14.08mm and 50.30mm x 14.07mm, respectively.
From all of the testing done on 18650 batteries, one could make the assement that any 18650 with a claimed capacity greater than 2400mAh is in reality only capable of around 2400/2500mAh.
So is there any real reason unless it's a good deal to buy a a set of 18650 greater than 2400mAh?
I mean the difference of +/- 100mAh is no big deal, but why buy a cell that claims lets say 2800mAh.
i dont have any cells above 2600mAh claimed to test, but from the test numbers there is no real reason to. The gains if any diminish greatly the higher claimed capacity.
Those are pretty decent numbers but who knows how they'll hold up over time.
Don wrote:
"But as I said long ago, you are more likely to be killed by a dead fish dropped by a seagull in the Sahara Desert than by a lithium ion
Just got this one in , Sanyo 2600mAh capacity .. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=370406814898&ssPageName=STRK:MEWNX:IT#ht_2220wt_905
Discharged at 0.5A to 3v .. Now some manufacturers say you can discharge to 2.75 or 2.5 Volts under load ..
Anyhow , the hobby charger stops at 3v under load = 2433mAh to 3v ..
Being Sanyo there is no protection circuit ..
Always remember , the easiest thing in the world to do , is to expel hot air from your lungs and through some vocal chords ..
The resulting sound may , or may not be worth listening too ….
http://cgi.ebay.com/Samsung-18650-ICR18650-28A-2800-Li-ion-3-7v-Battery-x2-/370422727802?pt=US_Batteries&hash=item563eea447a#ht_2260wt_905
Discharge Termination Voltage: 2.75V
Capacity: 2800mAh (Min 2750mAh)
Well , after charging to 4.2v , and then discharging to 3v under load [ 0.5A ] I got some 2486mAh ...
If I were able to discharge lower it may have come close [ may have ] to the claimed minimum .
So keep in mind that discharge is between 4.2v and 3v ..
Always remember , the easiest thing in the world to do , is to expel hot air from your lungs and through some vocal chords ..
The resulting sound may , or may not be worth listening too ….
Thanks again for all the work you're doing collecting data on these batteries, Old4570!
Unfortunately more Junk ...
Discharged as arrived = 0 capacity
Charge @ 0.5A then discharged @ 0.5A
= 1st cell was 251mAh / 2nd cell was 263mAh , which is really poor capacity ...
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rt=nc&nma=true&item=300509334588&si=0jP1lOZ55HTuqAu3ium%252FCuMJCQk%253D&viewitem=&sspagename=STRK:MEWNX:IT#ht_1826wt_905
Always remember , the easiest thing in the world to do , is to expel hot air from your lungs and through some vocal chords ..
The resulting sound may , or may not be worth listening too ….
Pic in the bestinone thread.
Claimed capacity 600mAh - first one tested gave 568mAh on a Turnigy Accucell 6 at 500mA discharge rate. Semi-button top.
Hold output on a demanding AA (It does have an XM-L in it) light better than a flame Trustfire - both freshly charged, the IMR on its first cycle, the Trustfire with less than 5 charges.
The numbers from my light tests are always to be found here.
https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...
Replentished my supply of Eneloops from www.hkequipment.net last week. 8 AAs for $29.99. (ordered on 17/2 arrived 4/3 in Aus)
These are the 2nd gen Eneloops Part No 3UTGA (The ones with "up to 1500 recharges" & "retains 75% after 3 years" on the front of the packet ).
I have tested the 1st 4 on a Maha c9000.
Out of the packet:
1423
1417
1417
1410
After charge/discharge at 1amp:
2023
2014
2013
1999
I am running a break-in cycle on the other 4.
(I love these batteries)
Cheers,
Tim
I think I love my eneloops more than my flashlights. I have 100 (72 aa & 28 aaa) and I'm still thinking about getting more. I think my next set of eneloops will be those glitter ones since I already have the white, costco, tones, and XX eneloops. I have so many that I don't get to use them but I do maintenance on them with my C9000's. It's just as fun to me. :bigsmile:
You just gotta love them eneloops.
Don wrote:
"But as I said long ago, you are more likely to be killed by a dead fish dropped by a seagull in the Sahara Desert than by a lithium ion
Semi-button top - the button protrudes about 0.1mm from the top of the cell.
Unprotected
Diameter 14.2mm, length 49.9mm. For comparison, an Eneloop with my calipers measures 50.1mm length and 14.3mm diameter. Both lengths include the button.
Capacity at 1A discharge to 3V (Turnigy Accucell 6) - 558mAh. Will try the other three to get average numbers over four of them.
The numbers from my light tests are always to be found here.
https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...
Second Bestinone IMR 14500
Discharge 1A - 559mAh
Third one
Discharge 1A - 566mAh
The numbers from my light tests are always to be found here.
https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...
Well, I have been inspired by you guys and finally got the Turnigy Accucell 6 in the mail.
First test was a Hi-Max 18650 Protected 2600mAh from ebay
Claimed capacity = 2600mAh
Discharge @1A = 2481mAh
68.8mm x 18.2mm
Protected
Turnigy Accucell 6 Charger
Happy with this cell, and will probably get the 6 piece that the seller offers next time. The going counter offer is $34 shipped now?
The Giggle Loop
Last of my Ebay AAA purchase has arived ...
Discharged as they arived :
1/ 53mAh
2/ 41mAh
Charged at 0.5A and then discharged @ 0.5A
1/ 177mAh
2/ 210mAh
What can I say , thats bad , real bad .. Hopefully this will give anyone reading these posts some idea of what there getting when they buy the cheap chinese cells .
Always remember , the easiest thing in the world to do , is to expel hot air from your lungs and through some vocal chords ..
The resulting sound may , or may not be worth listening too ….
I bought some new batteries today
Brand: Woolworths Essentials
AAA 800 mah 4 pack
Price $13.98
These come with a 100 % money back guarantee (which I feel I will be claiming soon)
Initial discharge results at 500 ma.
1. 0
2. 4
3. 2
4.0
These were discharged and showing less than 1 volt.
I am currently charging and then will discharge but I am not expecting good results. They are made in China and it does say they should be charged before use.
Hmm I may be proven wrong
Charged at 500 mah
1. 1.44v 883 mah
2. 1.46v 1061 mah *
3. 1.46v 1091 mah *
4. 1.46v 1196 mah *
* They sat on 1.46 volt for a long time and kept taking charge??
I may see good discharge results. However they are NOT LSD and in real use would be poor I imagine.
results
1. 785 mah
2. 794
3. 814
4. 822
on maha c 9000
Quite good but for the price I'd rather have eneloops. Will recharge and leave for a week and then discharge.
i feel sick when i receive the such table. and some need to fill in the blanks, hahaha
Flashlight may bring me a sunshine~
Ok I just completed discharging 2 of the 2200mAh 18700 , well , late last night actually ..
Battery 1 returned 2151mAh @ 500mAh discharge rate
Battery 2 returned 2161mAh @ 500mAh discharge rate
These results are excellent for a 2200mAh rated battery .. Discharge was to 3v termination and started with the battery at 4.2v
PS/ There will be a complete review posted , so this is only the discharge portion .
http://budgetlightforum.cz.cc/node/1929 Xtar Review
Always remember , the easiest thing in the world to do , is to expel hot air from your lungs and through some vocal chords ..
The resulting sound may , or may not be worth listening too ….
Ok , discharged the 2400mAh Xtar cells @ 500mAh from 4.2v down to 3v ..
Cell 1 did some 2468mAh
Cell 2 did some 2485mAh
Now this is quite a first for me , cells actually exceeding stated capacity .. [ Well done Xtar ] , Its late , and I will discharge the 2600's tomorrow .
http://budgetlightforum.cz.cc/node/1929 Xtar Review
Always remember , the easiest thing in the world to do , is to expel hot air from your lungs and through some vocal chords ..
The resulting sound may , or may not be worth listening too ….
Looks like Xtar batteries will be next on my list.
Thank you
old4570 
for all your hard work and all the $$ you spend to share with us all of these battery reviews.
Don wrote:
"But as I said long ago, you are more likely to be killed by a dead fish dropped by a seagull in the Sahara Desert than by a lithium ion
The first Xtar 2600 built on a Sanyo 2600 has been discharged .. And much like the Sanyo I tested a little while ago Here , the capacity tested was very close ..
2433mAh for the Unprotected Sanyo , and some 2448mAh for the Xtar [ Sanyo 2600 based ] , Im currently waiting to put in the second cell , and I want to time it so it will finish a little after I get back from the Flashlight Meet tonight .
Ok , back from the meet , and the second one went 2438mAh .
Next will be some discharge [ for current ] tests ... , So hopefully will be able to post a review shortly .
http://budgetlightforum.cz.cc/node/1929 Xtar Review
Always remember , the easiest thing in the world to do , is to expel hot air from your lungs and through some vocal chords ..
The resulting sound may , or may not be worth listening too ….
Intresting, so far at 500ma the 2400mah cell actually has slightly more capacity than the 2600mah cell.
I guess the 2600mah will kick ass at higher currents though.
That reminds me, did anyone buy any of the "Sanyo 3.7V 2600mAh 18650 Rechargeable Battery" from KD?
I just wonder if they are genuine at that bargain price.
http://kaidomain.com/ProductDetails.aspx?ProductId=11000
Duracell Pre-Charged LSD (Rebranded Eneloop, "Duraloop") AAA NiMH
800 mAh, Non-protected, LaCrosse BC-900 Charger in capacity test mode
Charge 500 mAh, Discharge 250 mAh (I can't do 500/500 on this charger)
44.5 m x 10.1 mm
Third cycle battery capacity results for 4 cells:
822, 854, 830, 871 (Avg = 844) These are decent numbers for a proven/reliable LSD battery (above spec).
Adding to my hobbyking "Turnigy" LSD AA 2200mA
Another discharge at 1A to 1.0V gave 2184mA, this cell is also 2nd or 3rd cycle I think.
*Sorry, Could you add this data to my previous entry, New Data should be as below.
2150mAh @ 1A
2185mAh @ 1A
L - 50.0mm , D - 14.1mm
And a bad low light photo for you, except I drew numbers all over the battery...
"like everyone else - I’m looking for my next “last” flashlight" - ohnonothimagain
Im curious too. The price is amazing if they are in fact real Sanyo's. I did some research and couldnt find anyone who's bought and tested these yet.
Review: 150 Million Candlepower Military Xenon Arc Battlefield Illuminator (AN/VSS-3A)
My new collection of 50+ Chinese knives
I got mine from Ebay - [ are they the same ? lot ]
Always remember , the easiest thing in the world to do , is to expel hot air from your lungs and through some vocal chords ..
The resulting sound may , or may not be worth listening too ….
In case anyone was interested, just finished up recording a rundown test on a 11.1V li-ion protected pack made out of the Sanyo 2700 mAH cells (UR18650ZT).
The test was using a 10W halogen bulb as a load, so almost a pure resistive load. Average current draw was around .8 amps. Results were very near the ideal 2700 mAH capacity (at room temp). More importantly, the percentage increase in run time over the 2200 pack (roughly 23%) was right on the money. Cells came from SoShine. According to the manufacturer's specs, you do pay a hefty penalty with discharge currents above 1C (2.7 amps).
You can see the voltage vs. time plot over on my site:
https://sites.google.com/site/designshinelighting/image-page
4x PowerEx Imedion AAA
(LSD)
L-43.9mm
D-10.1mm
These cells aren't entirely new -- I bought them together with the C9000 a couple of weeks ago -- but they've only had a break-in and/or refresh/analyze cycle and a couple of very partial cycles in a flashlight for a couple of the cells. I ran two cycles of 500mA charge/500mA discharge and am reporting the second (which was 10-15mAh higher), so call it the fourth cycle overall for the cells.
I don't have calipers (so I eyeballed size...)
Edit: Measured one at 44.30mm x 10.17mm with digital calipers.
4x Ansmann maxE+ AA (LSD)
The other package of NiMH cells I bought together with the C9000. These have been discharged (didn't write down the numbers, but around 1700-1800 mAh out of the package) and then given a forming charge. They then sat a couple of weeks until I started them cycling for this test. They're actually still in the charger on a third cycle, but the numbers are quite close between the first two cycles, with two cells showing higher capacity in the second and two cells lower (differences of 11, -25, -17, and 10 mAh).
[Edit: the numbers for the third cycle were virtually identical (differences +1, 0, -2, and +4 mAh), so I'll let the 2nd-cycle numbers above stand.]
The reported capacities during the break-in cycle were also around 2200 mAh, so it's not simply voltage sag at 1 amp causing the low numbers.
Edit2: Digital calipers say two of the cells are 50.32mm x 14.08mm and 50.30mm x 14.07mm, respectively.
Aloha and welcome to BLF ralf and pethelman!
Don wrote:
"But as I said long ago, you are more likely to be killed by a dead fish dropped by a seagull in the Sahara Desert than by a lithium ion
Hmmm..
From all of the testing done on 18650 batteries, one could make the assement that any 18650 with a claimed capacity greater than 2400mAh is in reality only capable of around 2400/2500mAh.
So is there any real reason unless it's a good deal to buy a a set of 18650 greater than 2400mAh?
I mean the difference of +/- 100mAh is no big deal, but why buy a cell that claims lets say 2800mAh.
i dont have any cells above 2600mAh claimed to test, but from the test numbers there is no real reason to. The gains if any diminish greatly the higher claimed capacity.
The Giggle Loop
Clartech rechargeable LSD bought at E.LECLERC for 3,9€ for a 4 pack AAA sized rated 800mAh
Lacrosse charger 700 clone
After a refresh cycle (700mA charge, 350ma discharge)
A: 850mAh
B: 855mAh
C: 859mAh
D: 875mAh
Pretty good at price/preformance.
They're gonna send you a green redcat with a black LED.
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