Ebat battery review In this quick article i will show the result of the tests of the Ebat batteries I have done. Links in bottom of page. Equipment and test scenarios Icharger Duo 308 for testing capacity Flir I7 to meassure the temperature of the cell Logger on PC for […]

Ebat battery review

Building Opus charging station Material used: (All links below will take you to eBay) Watt/volt/amp meter  Opus Bt-3100 charger/tester Ac connector Cable Sleeve Heat shrink Plexi glass 2.5mm DC plugs Some mixed wires to connect it all together 12V 30A PSU  (Note that a better choice is a server PSU. […]

Building Opus Test/Charge station

Bluetooth speaker box build Today we will focus on building below bluetooth speaker box.  I will not go into details in this article today because i dont have the time. But i will list all essential stuff needed: 3s BMS: http://amzn.to/2mDKDNz 3s BMS from Ebay Bluetooth amplifier http://amzn.to/2lhlXJB 18650 cells. (I took […]

Build Bluetooth speaker box

Broken cell replacement Yes, this will happen eventually for everyone. If you, like me, using 2nd-hand cells we do not know how many cycles they all have done and they may go faulty on you. Today Im showing you how simple it is for me, with my design of bus […]

How to replace a broken cell

Fake 18650 cells from scam-sellers   Yes that´s t fact! Many of the cheap cells out there are fake and unfortunately many buyers don’t know about this. I have therefore done a raid on Ebay and did buy every one that was cheap and i though was scam. I did […]

FAKE & SCAM 18650 batteries