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Latest batch is bad

  • BIBIwood Geek And Interns Tuesday, February 7, 2012 8:13 PM Reply
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  • Victore Wednesday, February 8, 2012 2:41 AM Reply
    Sorry, not clear for me what these pictures mean.. does your charger say the batteries have only 2000mAh?
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  • SerialChiller Wednesday, February 8, 2012 11:51 AM Reply
    Yes it does, but there have been worse batches. 2000mAh is alright, although I think the original ones were better.
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  • sheepish Top 10 Forum Poster Wednesday, February 8, 2012 3:11 PM Reply
    So depending on the roll-off and voltage under load they might be not too bad.
    Remembering 30 years.
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  • SerialChiller Wednesday, February 8, 2012 3:26 PM Reply
    Those two are probably ok. But I still wouldn't buy these until many more units have been tested, who knows where they get the new cells from.
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  • Xumixu Wednesday, February 8, 2012 3:35 PM Reply
    I went with sku.05776 and sku.05790 I won't pay more if they have similar real capacity

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    post edited by Xumixu on 2/8/2012 at 3:36 PM
  • twekkelo Thursday, February 9, 2012 5:58 PM Reply
    Very Happy with mine :-) ! Received 19 january 2012. Packed in a plastic box which had clearly been opened as it has another label stuck over the old one. No bin symbol and has sparkly label. I dont have any way to measure capacity but can compare them to same batteries purchased july 2011 and sanyo 2600mah cells. The test, 2x18650 buck driver flashlight with heavily driven xml. 1.9amps from fresh cells rising to ~2.5amps with depleted cells. Cells were checked after 50minutes and then every 5minutes and considered empty when they read 3.4v. ↲↲
    trustfire 2400mah cells received july 2011. 1hr 5minutes. ↲trustfire 2400mah received january 2012.. 1hr 4minutes.↲sanyo 2600mah received may 2011. 1hr 15minutes. ↲ 1hr 4minutes was the first discharge so will probably improve slightly. ↲
    No problem delivering 2.8amps, i didnt do any single cell test as i wish to keep them a matched pair. P.S. When empty at 3.4volts the new trustfires read within 30mv of each other which shows them to identical. Lithium ion rules....
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  • Xumixu Thursday, February 16, 2012 8:02 PM Reply
    I'll be a guinea pig then.

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  • BIBIwood Geek And Interns Thursday, March 1, 2012 11:16 PM Reply

    Some result of the test I ran on the last batch:

    img src: http://hfr-rehost.net/http://self/pic/e458584d4d6262f1e7c4ca0d73c4ad7bcfd44802.png

    The capacity is not what it used to be, but the results seem consistent, it's better than nothing.
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  • sheepish Top 10 Forum Poster Friday, March 2, 2012 3:25 AM Reply
    A range of 2028 to 2143 mAh does not seem particularly consistent. Remember that the results I got for my two initial cells were 2301 and 2300 mAh (down to 3V). Sadly I didn't get a chance to test a bigger sample size. :P

    If the quality of these cells is not going to return to its old level will the price be reduced accordingly?
    Remembering 30 years.
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