Super Mini OBD2 OBDII ELM327 V2.1 Android Bluetooth Adapter Auto Scanner Torque
Weak version of ELM327
Software recommended by maker is a little bit odd, answering in Chinese sometimes. At least when I try it. Work well with other soft, but features supported are limited. Attached ELM327 identifier report. Good enough for the price.
Li-ion Lithium Lead-acid Battery Capacity Meter Discharge Tester Analyzer
I got it to test some old batteries. Arrived without any instructions, that is ok because it is straightforward to use. Connect battery, connect proper load resistance combination for desired discharge current, connect power supply -my phone charger is ok - set end voltage ...Read full review
5pcs PFM Control DC-DC USB 0.9V-5V to 5V dc Boost Step-up Power Supply Module
From 0.8 to 3.3V give only 3.3V output
If you need an output of 5 V is mandatory to feed it at least 3.3V, that is ok for LiIon cell. My batch works from 0.8 V, but from 0.8 to 3.3 output is stabilized at 3.3V. All tests were performed under 300mA load current using a lab DC variable source instead batteries. It ...Read full review