Led flashlight, section seven, No. 3 battery for 3,7V lithium battery. What type do you need?
Enclosed are two 18650 flashlight batteries for your landlord's reference. ?Size 7, the general size is: diameter 11mm, height 44mm.18650, size is not necessarily appropriate, look at the host's flashlight battery slot structure?.If the three series is a straight shape, the size is not suitable to use 18650.If the three series are in side-by-side bundles, use 18650 instead.
There is no limit, mainly voltage problems, the 3 Section 7 battery voltage is 4.5V in series, and the lithium battery voltage is low, but the current is generally applicable to led flashlight.
If the original flashlight constant current circuit, the direct use of section 1 rechargeable lithium battery can be 18650, if the 3 lithium battery would not necessarily, only with more wide circuit voltage amplitude, such as the 3-12v circuit.
