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Thread: X7R - Maximising Battery Life

  1. #1

    Default X7R - Maximising Battery Life

    Hi All,

    Have purchased the M7R. Olight suggest the batteries are good for 300 cycles.

    Just want to know how to maximise battery life. Should you continually top up after each use or try to wait until down to say 30% of capacity?

    Each time you place on the charger does that represent 1 cycle?

    Regards

    Sun Boy

  2. #2
    Flashaholic* ChrisGarrett's Avatar
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    Default Re: X7R - Maximising Battery Life

    Quote Originally Posted by Sun Boy View Post
    Hi All,

    Have purchased the M7R. Olight suggest the batteries are good for 300 cycles.

    Just want to know how to maximise battery life. Should you continually top up after each use or try to wait until down to say 30% of capacity?

    Each time you place on the charger does that represent 1 cycle?

    Regards

    Sun Boy
    A cycle is usually classified as a charge/discharge. If you're not going to be using the cells for a few months, discharge them down to 3.6v-3.7v, put them in a Ziploc baggie and then into the fridge.

    Cells and batteries are consumable items and will wear out. You can top off li-ion cells with little concern. You don't want to discharge them down to 2.75v-2.50v too often, if you do, charge them back up quickly, although this last point isn't so much of a concern with the current chemistries.

    Chris
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  3. #3

    Default Re: X7R - Maximising Battery Life

    Quote Originally Posted by ChrisGarrett View Post
    A cycle is usually classified as a charge/discharge. If you're not going to be using the cells for a few months, discharge them down to 3.6v-3.7v, put them in a Ziploc baggie and then into the fridge.

    Cells and batteries are consumable items and will wear out. You can top off li-ion cells with little concern. You don't want to discharge them down to 2.75v-2.50v too often, if you do, charge them back up quickly, although this last point isn't so much of a concern with the current chemistries.

    Chris
    Thankyou

  4. #4
    Flashaholic* stephenk's Avatar
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    Brisbane, Australia
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    656

    Default Re: X7R - Maximising Battery Life

    Quote Originally Posted by ChrisGarrett View Post
    A cycle is usually classified as a charge/discharge. If you're not going to be using the cells for a few months, discharge them down to 3.6v-3.7v, put them in a Ziploc baggie and then into the fridge.

    Cells and batteries are consumable items and will wear out. You can top off li-ion cells with little concern. You don't want to discharge them down to 2.75v-2.50v too often, if you do, charge them back up quickly, although this last point isn't so much of a concern with the current chemistries.

    Chris
    The M7R's batteries are internal, thus the fridge advice won't work.

    Answers to questions like this depend on usage. If you avoid having the light at high or low voltages as much as realistically possible then you may see better battery life e.g. if it usually discharges to around 50% after use, then if you don't charge until just before you next need it you may get better battery life. However if your use case requires the light to always be fully charged and ready to go, then expect a reduction in battery life. At the end of the day, you need the light to be useful for its purpose.

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