USB ADJUSTABLE 3 CURRENT 5V 1A 2A 3A BATTERY CAPACITY VOLTAGE DISCHARGE LOAD RESISTANCE TESTER GREEN

Sepcifications

A designed according to the principle of Ohm's Law and Through parallel resistance through a different switch,

it can produce 3 types of resistance from a new USB electronic load resistance discharge, when the entire switch

is opened, it is 2.2 ohm / 10 W, 4.7 ohm / 10 W, 2 types of resistance in parallel at the same time, In 5 V voltage

can almost produce a discharge current of 3 a.

The current size, according to ohm's law: Me = U / R Resistance in parallel

calculation formula: R = 1 / (1 / R1 + 1 / R2 + ... + 1 / Rn) K1 = 4.7Ohm / 10 W K2 = 2.2Ohm / 10 W