Involvement:Expert (understands the inner workings) - Ownership:1 day to 1 week
The charger for two lithium - ion accumulators 10430, 10440, 14500, 17670, 18650. Also can load 16340 (CR123A), but pro-rates or any other metal extenders of contacts since differently contacts don't reach the accumulator a little are necessary. UltraFire WF-139 loads one or two lithium - ion the accumulator at the same time. Two separate channels therefore batteries can be a various format and capacity are used. It is possible to load both protected, and unprotected accumulators. Charging is disconnected automatically. The main advantage of the UltraFire WF-139 device - lack of a so-called drop charge, i.e. at achievement of full level charging stops completely, no recharge by small current goes.
This specifics of UltraFire WF-139 is extremely useful for unprotected lithium - ion accumulators: their recharge is completely excluded.
It is possible to leave quietly to be charged accumulators for the night.
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