6 months LSD Ni-Mh test results (many batteries, more to come)

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fran82
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6 months LSD Ni-Mh test results (many batteries, more to come)

Hi guys!

I will start this thread to post the results about Low Self Discharge on AA and AAA NiMh cells.

In this moment I have results for 4 different batteries, but I am currently testing more, and all my future NiMh cells will be tested and the results will be posted here.

The LSD test will be of 6 months. I can not keep the batteries stored without use any more. And I also consider that no much people will have the batteries stored for more than 6 months without use and without recharging them.

 

This is the way I have done the tests:

I did 5 full cycles of charge/discharge, then did a full charge, recorded the max capacity obtained, and keept them stored for 6 months with no use, just only checking the no load voltage monthly.

So 6 months later (now) I have used the Imax B6 to discharge them and see what capacity still remains inside the battery.

The charge and discharge of the AAA cells is made at 200mA while the AA cells is made at 500mA.

 

For the moment, I have results for these:

- GsYuasa AAA 800mAh

- BTone AAA 850mAh

- BTone AA 2100mAh

- BTone AA 2500mAh

- Pisen AAA 800mAh

- Pisen AA 2000mAh  Dont buy these batteries, more info here http://budgetlightforum.com/node/9510?page=1#comment-164825

- Pseudo Genuine Sanyo Eneloop AA 1900mAh (dont know if they are genuine or not)

- GENUINE Sanyo Eneloop second gen AA 1900mAh

- GENUINE Sanyo Eneloop XX 2500mAh

 

OK let´s begin with the results.

 

1) GsYuasa AAA 800mAh

Link - http://www.dealextreme.com/p/gsyuasa-enitime-pre-charged-750mah-1-2v-rec...

FYI, no load voltages were:

1, 2, 3, 4, 5 and 6 months (1.314v, 1.307v, 1.297v, 1.295v, 1.294v, 1.291v)

Measured capacity - 741mAh

Remaining after six months - 556mAh

So it has about 75% of it´s capacity still available after 6 months.

 

 

2) BTone AAA 850mAh

Link - http://www.dealextreme.com/p/btone-rechargeable-1-2v-850mah-aaa-batterie...

FYI, no load voltages were:

1, 2, 3, 4, 5 and 6 months (1.325v, 1.316v, 1.310v, 1.307v, 1.306v, 1.303v)

Measured capacity - 801mAh

Remaining after six months - 687mAh

So it has about 86% of it´s capacity still available after 6 months.

 

 

3) BTone AA 2100mAh


Link (pack of 2) - http://www.dealextreme.com/p/rechargeable-1-2v-2000mah-ni-mh-aa-batterie...

Link (pack of 4) - http://www.dealextreme.com/p/btone-rechargeable-1-2v-2100mah-aa-batterie...

FYI, no load voltages were:

1, 2, 3, 4, 5 and 6 months (1.330v, 1.319v, 1.309v, 1.307v, 1.301v, 1.300v)

Measured capacity - 1930mAh

Remaining after six months - 1725mAh

So it has about 89% of it´s capacity still available after 6 months.

 

 

4) BTone AA 2500mAh

Link - http://www.dealextreme.com/p/rechargeable-1-2v-2500mah-aa-batteries-4-pi...

FYI, no load voltages were:

1, 2, 3, 4, 5 and 6 months (1.337v, 1.327v, 1.315v, 1.310v, 1.308v, 1.304v)

Measured capacity - 2276mAh

Remaining after six months - 1981mAh

So it has about 87% of it´s capacity still available after 6 months.

 

 

5) Pisen AAA 800mAh

Link - http://www.dealextreme.com/p/pisen-hr11-45-1-2v-800mah-ni-mh-rechargeabl...

FYI, no load voltages were:

1, 2, 3, 4, 5 and 6 months (1.315v, 1.309v, 1.302v, 1.297v, 1.293v, 1.292v)

Measured capacity - 768mAh

Remaining after six months - 573mAh

So it has about 74% of it´s capacity still available after 6 months.

 

 

6) Pisen AA 2000mAh

Link - http://www.dealextreme.com/p/pisen-hr15-51-1-2v-2000mah-ni-mh-rechargeab...?

FYI, no load voltages were:1, 2, 3, 4, 5 and 6 months (1.321v, 1.314v, 1.306v, 1.303v, 1.297v, 1.295v)

Measured capacity - 1853mAh

Remaining after six months - 1577mAh

So it has about 85% of it´s capacity still available after 6 months.


Dont buy these batteries, more info here http://budgetlightforum.com/node/9510?page=1#comment-164825

 

 

7) Sanyo Eneloop 1900mAh (first gen? I dont know if they are genuine. I beleive not)

Link

FYI, no load voltages were:

1, 2, 3, 4, 5 and 6 months (1.333v, 1.321v, 1.312v, 1.309v, 1.303v, 1.299v)

Measured capacity - 1897mAh

Remaining after six months - 1698mAh

So it has about 89% of it´s capacity still available after 6 months.

 

 

8 ) Genuine Sanyo Eneloop 1900mAh (second gen)

link - ebay USA seller

FYI, no load voltages were:

1, 2, 3, 4, 5 and 6 months (1.355v, 1.336v, 1.331v, 1.327v, 1.325v, 1.321v)

Measured capacity

Cell 1 = 1785mAh
Cell 2 = 1794mAh

Remaining after six months

Cell 1 = 1582mAh
Cell 2 = 1590mAh

So it has about 88.6% of it´s capacity still available after 6 months.

 

 

9) Genuine Sanyo Eneloop XX 2500mAh

Link - http://dx.com/p/genuine-sanyo-2500mah-ni-mh-rechargeable-aa-battery-blac...

FYI, no load voltages were:

1, 2, 3, 4, 5 and 6 months ()

Measured capacity

Cell 1 =

Cell 1 =

Cell 1 =
Cell 1 =


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Edited by: fran82 on 03/04/2013 - 04:05
scaru
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Are you going to post the results. Wink

fran82
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Some results are posted now, I am currently performing test to the remaining batts.

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MixoMaxo
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For who need cheap LSD or/and can't get eneloop at less of 10$ I recommend that AAA 4 just 4,4$ the price was 3,80$ time ago Sad

okwchin
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6 month testing is serious dedication!! Thanks for posting this information!

"like everyone else - I’m looking for my next “last” flashlight" -  ohnonothimagain

fran82
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6 months of testing? not really, just only the fact that the batteries were unused during 6 months until today.


updated again another result

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Ledsmoke
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Thank you very much. And like okwchin I also think this is serious. Wonderful test actually, never saw anything like it before. Good call!

~ Ledsmoke ~

Dutch humor:

[quote=djozz]

 I do not think that the BLF-community ben

fran82
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More results added. For the moment, the BTone 2100 is the winner in LSD and capacity tests from the other ones. Let´s see what happens with the Pisen AA 2000

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brted
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Amazed to see how well the Btones did. Even the 2500mAh Btones did pretty well (though they are really more like 2200mAh batteries). Thanks for doing a long-term test on these. To me there is no point in buying NiMH batteries unless they are LSD, but the only way to tell if they are really LSD is to do time tests like these.

Langcjl
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Very nice test. This is some helpful info that is hard to come by. Thanks for taking the time.

Piers said " ....but who wants enough light, when you have the option for far too much "

Buwuve
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Thank you for the results. Does the Pisen results will come in a few days?

Light up the darkness.

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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

fran82
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brted wrote:

Amazed to see how well the Btones did. Even the 2500mAh Btones did pretty well (though they are really more like 2200mAh batteries). Thanks for doing a long-term test on these. To me there is no point in buying NiMH batteries unless they are LSD, but the only way to tell if they are really LSD is to do time tests like these.

You are welcome. I think the same, I only buy LSD cells.

In my opinion, the BTone 2100 are better than the 2500 because of the price and that the fact that they are not 2500 but 2200-2300... The price/capacity ratio...

And about the eneloops I have. I dont know if they are genuine, but the BTone 2100 have slightly more capacity although about the same about LSD...

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fran82
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Buwuve wrote:

Thank you for the results. Does the Pisen results will come in a few days?

In this moment the Imax is "over-busy"... I am doing capacity tests of Li-ion batts and when finished I will discharge the Pisens AA to see how they perform. Maybe in a day or two the results of the Pisen will be posted here

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fran82
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Anyone can tell me which Ni-Mh batteries to buy to test them(both capacity and LSD)?

I have purchased almost all the ones available from DX except the Recycko and GsYuasa AA (I am not going to purchase nor the recycko nor the yuasa because of the bad comments in dx forums)

I need more LSD cells!

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ezarc
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fran82 wrote:

Anyone can tell me which Ni-Mh batteries to buy to test them(both capacity and LSD)?

I have purchased almost all the ones available from DX except the Recycko and GsYuasa AA (I am not going to purchase nor the recycko nor the yuasa because of the bad comments in dx forums)

I need more LSD cells!

How about these? It ended up costing around $10 for 4 including delivery.

fran82
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Interesting. I can see many people have done capacity tests of them. But not any LSD test of them.

Maybe, maybe. Looks good ( I never have purchased at hobbyking...)

Any other?

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fran82
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Is there any cheaper turnigy ones from HK? i.e. a pack of 2 instead of a pack of 4? Or another brand cheaper in a pack of 2?

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ezarc
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Panasonic

Duracell 

Rayovac

Powerex

IMEDION

Thats not going to be the best prices you can get them for, but they all have good reviews on various forums. 

fran82
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Thanks! (you are from Australia, I not, most of the ones you linked I have to pay more than 5$ shipping)

The panasonica evolta, OK but I have to pay shipping (uknown amount)

The Duracell, they are eneloop and I have to pay 5,39$ shipping

The rayovac, again uknown shipping cost

The Powerex are not LSD and I have to pay 8,99AUD shipping

The imedion, again 8,99 shipping

 

I think I am going to buy the ones from Hobbyking (turnigy), but I am going to "explore" HK website to see if there is a pack of 2...

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kreisler
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interesting tests!! thanks for them :=)

*FMI* i got 4 i/o sh
ezarc
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Yeah I would suggest using your local version of eBay if you have one or global.ebay.com to search for them and filter by lowest price first.

Also the ones from Hobby King are $1.29 each, you can buy as few or as many as you want. 

Shipping will be around $3 for 2 or $5 for 4.

 

And oops... I realize that the Powerex arent LSD, but they come up in the search I did and it slipped my mind. 

fran82
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One stupid question: hobbyking is from hongkong? They are in china or UK? (I never have purchased there). Where are the warehouses? where are the items stored and from where they are shipped? From china?

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fran82
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ezarc wrote:

Shipping will be around $3 for 2 or $5 for 4.

I can afford that!

Now please, where is hobbyking shop from? where do they ship from the parcels? That is important for me

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ezarc
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From Hong Kong. 

I ordered 4 about 1-2 weeks ago for my brother, it was shipped the next day which is surprising for Hobby King. I have 14 orders with them but didn't buy from them for a long time (about 6 months) because of how slow they are but I think they might have stepped up their game now. 

HKJ
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fran82 wrote:

One stupid question: hobbyking is from hongkong? They are in china or UK? (I never have purchased there). Where are the warehouses? where are the items stored and from where they are shipped? From china?

Form their website:

HobbyKing has 5 warehouse locations. Hong Kong, China, Germany, Australia and USA plus retail franchises in many countries across the globe.

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

fran82
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Retail franchise = local shop???

So if I make a purchase online they will ship from China or Germany? (I am from EU)

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ezarc
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They will ship from the main warehouse in Hong Kong. China is a "back warehouse" for big items that take up too much room in their Hong Kong warehouse, Germany and Australia and USA have their own pages where you can search for things, it usually costs more than coming from Hong Kong but its faster. But they don't have those batteries in any of them. 

fran82
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Thanks I finally will buy 2 turnigys from them today.

And.... in the future... if money permits.... my dream is to buy these:

http://www.ebay.es/itm/270692681466?ssPageName=STRK:MESINDXX:IT&_trksid=...

But they are expensive Frown And coming from a Chinese seller, they can be genuine or not........

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fran82
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I have noticed that brted is doing the LSD test from these batteries

http://budgetlightforum.com/node/9312

Maybe I should choose another ones.....

Any idea? (if not, I will purchase the turnigys anyway and contrast data...)

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I think all these LSD cells are a ripoff...  I've swallowed dozens of them and haven't gone off on a groovy trip yet Wink !

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