Batteries over the years

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    Anja Uhlig

    Thank you - very fine article ....

    but HOW can I change the battery in the Micro Drive Year 6 ???????

    how is it made? and how can I get off the battery without destroying the light?

    I tried out to find out this here in the helpdesk, but don't find anything about the topic.

    Best,

    Anja

  • Avatar
    Adam

    Hi Anja,

    The crafty people over at iFixit came up with a guide for doing that at home.

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    Matt Leonard

    I have the 1st and 2nd generation Superdrive which both use the 18650 battery.  Way back when, I was told I had to buy the Lezyne proprietary battery for $20 for safety reasons.  Was that BS, and I can buy any 18650 battery?  Do you recommend a specific brand?

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    Adam

    I don't have a brand suggest. Just make sure that the battery has a protection circuit. All of our batteries have a protection circuit that protects the battery from over voltage, over current, and under voltage failures.

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    End User

    Hi Adam,

    I have a pair of Micro Drive lights, they have given excellent service in the years I've owned them. The front light has recently started showing a red LED under the power button after roughly 20 minutes from switching on.

    The cells are LIR600 Lezyne branded, I deliberately run both cells down and used a USB UPM (universal power meter) to monitor the charging process, this allows me to see how many mAh's the cell has taken to fully charge.

    Weirdly, one battery charged to 622mAh, the other to 902mah ~ how is this possible when both cells are only 600mAh rated...?, perhaps my USB UPM is wholly unreliable, to be sure, I'm running the cells down once more and will charge again using the monitor; but perhaps I should get another power monitor for comparison. I will be replacing the cells as soon as I can, but finding the cells at a reasonable price and will ship to my location, is proving difficult, so I may plump for Nitecore RCR123a (protected) cells.

    FWIW: The run time (on brightest setting) is still pretty good despite a failing cell;

    REAR   = 214 minutes (3h 34mins) ~ 70 lumens
    FRONT = 192 minutes (3h 12mins) ~ 200 lumens

    Regards,

    p.s. Disassembly achieved using a silicone gun, a herb grinder and 2 sockets (12mm & 22mm).


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    Axel Redemann

    Can I just use 2 aftermarket 18650s to replace the battery in my MegaDrive?

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    Adam

    Hi Axel,

    No, it's not the same battery. The caps at the top are different.

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    End User

    How can you implicitly say it's not the same battery when there are different types of 18650?, some have button top, some are flat, some are with protection some are not. It is a case of making the right match, so I think it is wrong to say "it's not the same battery"

    Regarding aftermarket, stick to known name brands and don;t be sucked in by the crap you find on eBay for a few quid. 3400mAh/3500mAh is the maximum mAh ratings, anything over those figures are pure poppycock and are more likely to be 1200mAh - the Chinese know this and play on people's ignorance. 

    Adam may also not be allowed to recommend that you use anything other than a Lezyne branded battery, which at the end of the day will most likely be a Panasonic or Samsung battery with a Lezyne wrap applied to it.

    It would be nice if Adam could part with more information instead of just saying "no..."

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    Gabriel Pfeiffer

    I have a pair of older Powerdrive XL lights that use the standard 18650 batteries. These batteries are no longer available for purchase. They are 2400mah. I would like to buy some newer batteries but concerned with the CDR for the light. If a newer battery from Sony, Samsung, LG or Panasonic/Sanyo has come out since the lights were released with more capacity I would like to try them. What is the CDR for the 400 lumen powerdrive Xl?

     

    Thank You!!

  • Avatar
    Adam

    I'm explicitly saying it's not the same battery. I know some customers have gotten after-factory 18650 batteries for the smaller lights. That's fine as long as you make sure it's rechargeable - I'd hate for someone in a remote corner of the world to not have a battery for their light simply because they can't access a Lezyne branded battery.

    The first generation Mega and Deca Drive batteries are two 18650 batteries spliced together with a custom button top offset to accommodate the way the light had to be designed. It's beyond my capabilities or knowledge to advise on how to make one of those on your own (and it wouldn't be a great idea for me to do so anyway for liability reasons).

    The US office has a few of these batteries, but we can't ship internationally from this office. Our UK distributor could request them from our factory, but they would have to get enough requests from consumers to know there's demand. The same goes for any other international distributor.

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    End User

    Ah, okay, gotcha, thanks for the clarification Adam, much appreciated.

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    Gabriel Pfeiffer

    Any help for me Adam? I don't want to buy junk batteries, but depending on the CDR, I also don't want to buy batteries that can't take the load.

  • Avatar
    Adam

    Gabriel,

    Our electrical engineer says you can use pretty much any rechargeable 18650.

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    Gabriel Pfeiffer

    That's great to hear! Thank you for the speedy response!! I was concerned about the higher capacity batteries not being able to take the strain of the LED.

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