Overview

Specification

Input Interface / Output Interface: 100A High Current Bite Screw Stud
Voltage measurement range: 0.00V ~ 200V, Resolution accuracy: 0.01V
Current measurement range: 0.00A ~ 20A, Resolution accuracy: 0.01A
Capacity accumulation range: 0 ~ 999.999Ah, Resolution accuracy: 0.01Ah
Power accumulation range: 0 ~ 9999.9Wh, Resolution accuracy: 0.01Wh
Power measurement range: 0000.00 ~ 150W, Resolution accuracy: 0.01W
Impedance measurement range: 1 ~ 999.9Ω, Resolution accuracy: 0.01 Ω
Temperature measurement range: 0 ~ 99 ℃, Resolution accuracy: 1 ℃
Timing maximum time: 999 hours 59 minutes 59 seconds, Resolution accuracy: 1 second
Timing measurement reminder settings: countdown 24 hours, any value can be set
Small current standby to remind the threshold parameters and timing: <2W / 0.5 hours; > 0.5W begin timing
Power supply: 4 ~ 30V range of DC voltage

Note:
1. Please turn down the knob to the end counterclockwise before using, and then turn up slowly.
2. Please pay attention to your safety when the voltage is more than 36V.
3. Several tested power supply can not be connected simultaneously.
4. The current adjustment knob should be regulated slowly.

Package Include:
1 x Adjustable Constant Current Electronic Load
1 x Charger
2 x Crocodile Clip
1 x USB Crocodile Clip
(Other items in the picture are NOT included)

Instructions

• Turn knobs couter clockwise to reset things to 0
• Calculate the max current using I=P/V, I=150/V
• Slowly increase current using the knobs ensuring that you are well under your max current.

Problem

• something has shorted

Solution

Tested the MOSFET (See reference below) and replaced MOSFET and everything seems to be working now. 

Why did it Break?

Probably because I hadn't reset the knobs controlling the current to zero resistance before connecting to battery.

This unit has a 150W limit! So, if you are using 40V, the max current you should draw would be:

P=IV

I=P/V

I=150/40

I = 3.75A

Pictures

IRFP260

IRDF264

Fix

I replaced the broken IRFP260 with a IRFP264. Works but not reported proper results.

Ordered some IRFP260N chips. Will try those.

References