Review: Btone AA batteries

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old4570
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Review: Btone AA batteries

1B.jpg

 

http://www.dealextreme.com/p/rechargeable-1-2v-2000mah-ni-mh-aa-batteries-pair-91267  Link to :  


I saw the Btone AA's on DX and after reading a few user tests , thought I would invest in a pair . On removal from the packet , I discharged the batteries at 500mA to see how much current remained , the batteries returned 1551mAh and 1558mAh .  I then charged the batteries at one amp till completed , removed them from the charger , and rested them for 30 minutes . I then discharged the batteries at one amp , and the batteries returned 1917mAh and 1931mAh . Im sure if I had allowed the batteries to charge at a slower rated and allowed them to be topped up , I may have seen 2000mAh capacity ...


2B.jpg


I dont read Chinese , but these cells are being reported as LSD [ Low Self Discharge ] and from the very limited time I had these batteries sitting waiting for the discharge test [ 5 days ] they held up very well ... 

I compared the Btone to the Rayovac 4.0 - GP Recyko and Eneloop . After charging the 4 batteries , I let them rest for 5 days , and the resting voltages were :

Rayovac 4.0 = 1.37v

CP Recyko  = 1.37v

Eneloop       = 1.36v

Btone          = 1.39v 


I then ran some discharge tests in 5 flashlights to see how well the batteries discharged current : 


Btone.jpg


Well , there you go : 


So far looks like money well spent , only time will tell how well the battery will stand up to everyday use , but in these tests the Btone battery has held its own rather well ..  

 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 ….

 

Edited by: sb56637 on 08/26/2014 - 17:47
Buwuve
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This sounds really good. Maybe a alternativ to the other brands. I hope they will be as good as now in the furure.

For people who need more, here is the link to 4er pack.

2 pieces price (bulkrate): $5,70 ($4,87 /  $4,77 / $4,67)

4 pieces price (bulkrate): $10,20 ($8,95 /  $8,85 / $8,75)

Light up the darkness.

UDO
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Interesting alternative to Turnigy LSD batteries (Hobbyking) and similary priced too.

 

CheapThrills
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Interesting test results.

I once ordered "eNitime" AAA batts, they seemed to by OK also, I measured capacity to be close to what Eneloops holp.

 

IMO the price on these is so close to Eneloops, I think I will still stick to them.

Tally-ho
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old4570 wrote:
I dont read Chinese , but these cells are being reported as LSD [ Low Self Discharge ]

Google translation:

"Brilliant source (BTONE) significantly improved the "self-discharge" of negative features, common to place one year after the nickel-metal hydride battery remaining capacity is almost zero, while the times to place one year after the special source of power could meet 80% of the remaining. In addition, in an environment of 20 degrees Celsius, this battery power loss of only 20%, while the voltage drop is small. Times more valuable is the special source can be recharged 1000 times, not only to reduce the harm to the environment, the user's life is also an effective protection".

http://translate.google.com/translate?sl=zh-CN&tl=en&js=n&prev=_t&hl=fr&ie=UTF-8&layout=2&eotf=1&u=http%3A%2F%2Fwww.btone.com.cn%2FEn%2FProductShow.aspx%3FChannelID%3D3%26ProductID%3D7

jekostas
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Huh.  The BTOne batteries tend to get pretty awful reviews, but if old4570 says the new ones are good they must be good.

Hobbyfotograaf
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These are more expensive than the Topcraft "ready to use" from Aldi, and it seems that they have the same capacity. The Topcrafts cost 4,99 euro (4 pack AA or AAA).

 

Fresh out of the package @ 1000mA discharge:

battery 1 : 1516mAh
battery 2 : 1556mAh
battery 3 : 1537mAh
battery 4 : 1553mAh

After Refresh/Analyze (MH-C9000 @ 1000mA charge and 500mA discharge):

battery 1 : 1953mAh
battery 2 : 1958mAh
battery 3 : 1910mAh
battery 4 : 1975mAh

The only problem is that they only sell these 2 times a year, and you can not order them online. And i don't think there are Aldi's all over the world...

 

Buwuve
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In Germany the batteries of Aldi looks different.

Aldi expand in many countries (many european countriesy have Aldi, and USA and Australia, too).

Light up the darkness.

CheapThrills
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Lidl also has those Red Tronics.

I tested AAA and got good results. They were also cheap, 4€/4pcs or so.

It´s funny, you can get those regular cheap NiMh´s and there´s like no bottom in the well of how bad they can perform...

And yet if you get even cheapish LSD-cells, they seem to be quite ok... Confusing. Assuming that they really are LSD.

sb56637
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Hmm, interesting alternative to Eneloops. I'm always interested in seeing good deals on LSD NiMHs. But I think I would spend the additional $4 and buy Eneloops, because they are proven and don't cost much more.

Thanks for the great review! Frontpage'd and Sticky'd.

Budget Light Forum ...where Frugal meets with Flashlight!

fishinfool
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Thanks old4570! 

 

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

edc
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I had similar results from a pair I bought. Seem to be LSD. They have hidden vents.

 

http://i1193.photobucket.com/albums

Hobbyfotograaf
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@ Buwuve:

If they look like this, then they are a little better :

 

The "Pre charged" is from last year, the capacity is a little bit higher:

After the first refresh/analyze:

(there are 2 AA's and 2 AAA's on the photo, but this is the test of 4 AA batteries)

Battery 1: 2054mAh
Battery 2: 2073mAh
Battery 3: 2078mAh
Battery 4: 2019mAh

After one more refresh/analyze:

Battery 1: 2055mAh
Battery 2: 2096mAh
Battery 3: 2079mAh
Battery 4: 2096mAh

The AAA's are very good too.

Buwuve
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@Hobbyfotograaf

Thank you for the picture. The next Aldi to me sold this batteries of ACTIV:

http://www.aldi-sued.de/de/html/offers/58_27502.htm

In Germany are two ALDI groups and each has special brands. ALDI Nord (has TopCraftt) and ALDI Süd (has ACTIV) - the founders of ALDI were two brothers and the decided to share Germany in two part. One of the brother controll the north, the other the south. They expand in different countries, Belgium is part of ALDI Nord.

 

 

Light up the darkness.

CheapThrills
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In fact, these cost even more than Eneloops: http://eu.nkon.nl/sanyo-eneloop-aa-aaa-batteries.html

After shipping added, there´s only a small difference.

mfm
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14 posts discussing LSD batteries and no measurement or even mention of the actual self discharge?

fighting
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old4570 wrote:

1B.jpg

 

http://www.dealextreme.com/p/rechargeable-1-2v-2000mah-ni-mh-aa-batteries-pair-91267  Link to :  


I saw the Btone AA's on DX and after reading a few user tests , thought I would invest in a pair . On removal from the packet , I discharged the batteries at 500mA to see how much current remained , the batteries returned 1551mAh and 1558mAh .  I then charged the batteries at one amp till completed , removed them from the charger , and rested them for 30 minutes . I then discharged the batteries at one amp , and the batteries returned 1917mAh and 1931mAh . Im sure if I had allowed the batteries to charge at a slower rated and allowed them to be topped up , I may have seen 2000mAh capacity ...


2B.jpg


I dont read Chinese , but these cells are being reported as LSD [ Low Self Discharge ] and from the very limited time I had these batteries sitting waiting for the discharge test [ 5 days ] they held up very well ... 

I compared the Btone to the Rayovac 4.0 - GP Recyko and Eneloop . After charging the 4 batteries , I let them rest for 5 days , and the resting voltages were :

Rayovac 4.0 = 1.37v

CP Recyko  = 1.37v

Eneloop       = 1.36v

Btone          = 1.39v 


I then ran some discharge tests in 5 flashlights to see how well the batteries discharged current : 


Btone.jpg


Well , there you go : 


So far looks like money well spent , only time will tell how well the battery will stand up to everyday use , but in these tests the Btone battery has held its own rather well ..  

good result. I feel you are very professional.

CheapThrills
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mfm wrote:

14 posts discussing LSD batteries and no measurement or even mention of the actual self discharge?

Look at the DX-link and you will notice date stamps under "post a new topic".

It would not be much use IMO, to post self-discharge specs for like under 1 month period of time... (item has not been at DX for long, I bet old has had it even for less time...)

Hobbyfotograaf
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The Aldi LSD batteries have really low selfdischarge, but i did not measure the selfdischarge.

I use the green ones for more than two years, and they are still very good (the capacity is about the same as when they were new). And they are always "ready to use" when i need them in the external flash (Canon 430 EX II and 580 EX). I just keep the batteries in the camerabag, and use them when they are needed. Never had any problem with selfdischarged Aldi LSD batteries.

I still have a set of the Ready to use AA's in the original package, i bought these in june. I can test the capacity (out of the package, without charging) of these and compare them to the others wich i have tested in june. If the capacity of these are about the same, then the selfdischarge is low. I will put them in the Maha right now and post the results later.

Here are the results of the Top Craft Ready To Use, that  i bought a few months ago.

This is the capacity of the batteries, right out of the package, to check if they are really LSD’s.

Discharged @ 1000mA.

Battery 1:   1423mAh

Battery 2:   1533mAh

Battery 3:   1451mAh

Battery 4:   1505mAh

That is about the same as the ones I tested a few months ago, so these are really LSD batteries.

 

edc
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The batteries were manufactured 10- 06. If we assume they were charged and packaged at the same time then they are over 12 months old so must be lsd to

have 80% of their charge left.

 

http://i1193.photobucket.com/albums

srtbrazil
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Thank you Old for the review. Does anyone knows the best place to buy ORIGINAL eneloops?

edc
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I've noticed they have gone up in price. There was a seller on ebay who was cheap but he has disappeared.I  got 12 delivered for 38 USD.

 

http://i1193.photobucket.com/albums

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Thank you folks

Nil Einne
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UDO wrote:

You can also get 12 x Turnigy 2200 mAh LSD for 25$ delivered - http://www.hobbyking.com/hobbyking/store/__10456__Turnigy_AA_LSD_2200mah_Low_Self_Discharge_ready_to_use_.html. They have good reviews too:

http://budgetlightforum.com/node/164#comment-4376 

http://budgetlightforum.com/node/164#comment-446

 

Yeah Turnigy still seem the better price if you're buying decent quantity although price does depend on where you live because shipping varies. Because of their shipping prices it tends to get better if you're buying more. E.g I pay $28.06 all up for 14 Turnigy cells (~$2.004 for 1) from HK compared to $28.55 for 12 BTONE cells (~$2.379 for 1) or $37.50 for 16 BTONE cells (~$2.344) from DX Bulkrate. $76.18 all up for 42 Turnigy cells (~$1.814 for one) from HK compared to $89.20 for 40 BTOne cells ($2.23 for one) or $97.95 for 44 BTOne cells  (~$2.226 for one) from DX Bulkrate. Although past something like 6kg it may be better to seperate in to 2 orders for HK (but that's a lot of batteries!)

Edit: Just a note, calculations for BTONE based on 4 packs from DX (http://www.dealextreme.com/p/btone-rechargeable-1-2v-2100mah-aa-batterie...) since they are cheaper then the 2 pack

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B-Tone AA batteries are also available in 2000mAh (pack of 2), 2100mAh (pack of 4) and 2500mAh (pack of 4).

http://www.dealextreme.com/p/rechargeable-1-2v-2000mah-ni-mh-aa-batterie...

http://www.dealextreme.com/p/btone-rechargeable-1-2v-2100mah-aa-batterie...

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

 

There are also B-Tone AAA batteries available in 850mAh (pack of 4)

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

 

 

I have ordered the 2500mAh AA version. I will do a review and capacity test and LSD test as soon as they arrive.

 

 

This post/thread "may" contain referrals, a little contribution I "earn" in form of points ONLY if you buy the item. The purpose is to redeem items using the points and then making reviews of them in the forums to shar

Nil Einne
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fran82 wrote:


B-Tone AA batteries are also available in 2000mAh (pack of 2), 2100mAh (pack of 4) and 2500mAh (pack of 4).

http://www.dealextreme.com/p/rechargeable-1-2v-2000mah-ni-mh-aa-batterie...

http://www.dealextreme.com/p/btone-rechargeable-1-2v-2100mah-aa-batterie...

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

 

There are also B-Tone AAA batteries available in 850mAh (pack of 4)

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

 

I have ordered the 2500mAh AA version. I will do a review and capacity test and LSD test as soon as they arrive.



The 2000 2 pack and 2100 4 pack seem to be the same thing except 2 and 4 pack (both packs say 2100).

An interesting point, it's commonly claimed on the other placethere are only 4 makers of LSD batteries although I haven't ever seen great evidence for this. The Sanyo Eneloops (now comes in multiple flavours) which are made in Japan, the Maha/PowerEx Imedion which come in 2100 (rated min 2000) and 2400mAh (rated min 2250) capacities and are made in Taiwan, the GP ReCycko (Turnigy and Kodak Precharged are believed to be this) which only come in 2100 mAh which are made in China and tend to be a little fat, and the Yuasa-Delta (Panasonic, GS Yuasa, Rayovac Hybrids and blacktop Duracell) which come in 2100 and 2500 capacities and are also made in China.

Both the Eneloops and Imedions have white tops whereas the other two have black tops. (Well not sure about the newer higher capacity etc variants.) http://www.candlepowerforums.com/vb/showthread.php?218956-The-different-...

http://www.candlepowerforums.com/vb/showthread.php?223842-Sanyo-Eneloop-...

http://budgetlightforum.com/node/382

The interesting thing is these are white tops, but labelled as made in China. There are a few others I've seen like this e.g. Camelion http://budgetlightforum.com/node/382

and some Ultralast Hybrio

http://www.candlepowerforums.com/vb/showthread.php?194422-When-is-a-Hybr...
http://www.candlepowerforums.com/vb/showthread.php?192345-Uniross-Hybrio......
(Some UNiROSS Hybrio look and perform like Eneloops despite being labelled as made in China)

They look somewhat similar to Imedion (small button top with no vent, ridge near top) but Imedion are always marked as made in Taiwan. No one really seems to know much about these variants. I note from http://www.candlepowerforums.com/vb/showthread.php?194180-eneloop-vs.- it seems there are other Unilast/Uniross Hybrios which are different again and from the description seem to be different from any of the other so it's rather confusing.

The 2500mAh and 2100mAh rated capacities seem to be similar to the Yuasa LSD variants despite being white top (from what I can tell the 2500mAh Yuasa branded ones are black tops too). Perhaps they're from Yuasa but a different factory? (There was some suggestion the Hybrios were Yuasa.) Or perhaps there's more LSD manufacturers by now.

P.S. I came across http://www.candlepowerforums.com/vb/showthread.php?312022-Fake-Eneloops while researching. I have to admit to laughing when it was suggested the (minute number of) people who can actually recognise the old Eneloop design would matter to Sanyo.

fran82
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Wow! I didnt knew about the manufacturers, and I didnt noticed that the 4 pack and the 2 pack are the same

Sorry.

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mfm
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fran82 wrote:

I have ordered the 2500mAh AA version. I will do a review and capacity test and LSD test as soon as they arrive.

It doesn't say anywhere that the 2500 mAh ones are LSD? Except that the wrapper, battery design and even product number is copied directly from Eneloop...

fran82
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@mfm

Look the battery label. You can see "ready to use" and "japan technology"

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