Involvement:Expert (understands the inner workings) - Ownership:more than 1 month
works. cuts off when voltage is to low or high. havent tested the correct voltage yet. fits perfectly on my used laptop batteries. they are 18650. makes my old laptop batteries protected in single battery applications. the metal bands have the correct length. no need for adjustment
the metal bands are not tinned. so you need a lot of heat in your solder iron. mine have that so not that big of a problem. it come with no ring to make it straight.
ship it with the leveling ring like the real protected batteries have. that would make it much more ease to use. then the protection unit is connected to the battery, it is in OFF mode. connect the protected battery to a charger to turn it ON the first time.
works great. better to be safe than sorry (and an exploded flashlight in your hand)
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