DX » Community » Reviews » Portable Battery Charger for 18650 (100~240V)
4.9
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  • Good item for good price

    posted by BoxterSS on 03/13/2013
    1

    Involvement:Expert (understands the inner workings) - Ownership:more than 1 month

    Pros:

    The charging protocol depends on the size and type of the battery being charged. Some battery types have high tolerance for overcharging and can be recharged by connection to a constant voltage source or a constant current source; simple chargers of this type require manual disconnection at the end of the charge cycle, or may have a timer to cut off charging current at a fixed time

    Cons:

    Other battery types cannot withstand long high-rate over-charging; the charger may have temperature or voltage sensing circuits and a microprocessor controller to adjust the charging current, and cut off at the end of charge. A trickle charger provides a relatively small amount of current, only enough to counteract self-discharge of a battery that is idle for a long time.

    OtherThoughts:

    Slow battery chargers may take several hours to complete a charge; high-rate chargers may restore most capacity within minutes or less than an hour, but generally require monitoring of the battery to protect it from overcharge. Electric vehicles need high-rate chargers for public access; installation of such chargers and the distribution support for them is an issue in the proposed adoption of electric cars.

    Bottomline:

    At the end this product worth these money,i use it long time and he still working

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