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Capacity

  • shein Monday, November 21, 2011 8:35 AM Reply
    My measurements:

    First battery: 1991mAh
    Second battery: 2178mAh

    Discharge current: 0.5A

    BTW. I bought similar batteries from ebay and their capacity measurement was 150mAh and 220mAh which is a complete rip-off!
    So, these ones are not bad.
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  • jonnymey Thursday, January 12, 2012 1:08 AM Reply
    can u teach me how to measure mAh using a digital multimeter?? Like what ports should i plug things in and etc ?? Thank you, I only know how to measure voltage , Im not a enginner . and I wanted to know because I buy a lot of 18650 batteries with DX.
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  • desolder Top 10 Forum Poster Monday, January 16, 2012 12:19 PM Reply
    Practically all the modern multi-chemistry hobby chargers have a capacity test function. Do yourself a HUGE favor and buy one. For example, the IMAX B6, sku.35190.
    What's up with the scrubbed LED driver IC markings?
    What are they trying to hide?

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  • erirohvel Thursday, January 19, 2012 2:48 PM Reply
    any videos showing the exact procedure of how it's measuring the data?
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  • desolder Top 10 Forum Poster Thursday, January 19, 2012 4:48 PM Reply
    I'm not aware of any. But the procedure is simple. The IMAX B6 manual, which is available online, explains the steps.
    What's up with the scrubbed LED driver IC markings?
    What are they trying to hide?

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  • erirohvel Tuesday, January 24, 2012 12:33 AM Reply
    i measured 4.15 and 2.78v on these... and it doesnt seem to go off @2.78v in a lamp? only gets very dim...
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  • desolder Top 10 Forum Poster Tuesday, January 24, 2012 12:01 PM Reply
    The cutoff is usually much lower, from 2.2V to 2.5V. It might take a long time to actually trigger the cutoff because the LED current exponentially decreases as the voltage goes down. It's like trying to chase a rabbit... the closer you get the faster it runs away. If you want to test the cutoff circuit quicker, try using a ~2-3 ohm resistor instead. The current won't drop as quickly.
    What's up with the scrubbed LED driver IC markings?
    What are they trying to hide?

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  • tforgo Tuesday, March 06, 2012 3:53 PM Reply
    Tested using constant current discharge LM350

    1A
    1867 mAh
    1938 mAh


    https://docs.google.com/spreadsheet/oimg?key=0AhMVrhJUjZW7dHVQcVZGNWhZZEdHSUFRTHVscExRVVE&oid=2&zx=a6at51s0abr5
    img src: https://docs.google.com/spreadsheet/oimg?key=0AhMVrhJUjZW7dHVQcVZGNWhZZEdHSUFRTHVscExRVVE&oid=2&zx=a6at51s0abr5

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  • desolder Top 10 Forum Poster Tuesday, March 06, 2012 4:21 PM Reply
    Thanks tforgo. Can we assume you're using the older, better version of the TF flame sku.20392? The new ones are only getting around 1900~2000mAh @ 1A.
    What's up with the scrubbed LED driver IC markings?
    What are they trying to hide?

    Posts(6986) | Reviews | Tip post

  • tforgo Tuesday, March 06, 2012 4:27 PM Reply
    It's new. The ones with gray logo and four symbols.

    Order Date: 1/6/2012
    Shipping date: 1/17/2012
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