Ammibattery Replacement Battery For Sony VAIO 14E 15E SVF142 SVF152 SVF154B1EL SVF15212CXB VGP-BPS35A VGPBPS35

hello friends now we continue our lessons on laptop battery repair today it's a Sony battery first let's open it here we go you as we can see the chip is r2j 240 to make our work more comfortable we'll replace it cells with 470 ohms resistors let's check the fuse power pins zero it's okay control pins eight herbs it's a resistance of the heater the fuse is okay now we applied voltage from external power source the voltage is around 11 volts the current is limited with 30 Mille amperes now let's find clock and data pins first we need to connect positive pin of battery terminal to positive pin of power source to make our PCB active because it's now in a sleep mode let's start searching first try nothing nothing nothing let's change cloaking date appears from adapter and do the second try nothing nothing it's a beep with battery data appear the pins are found let's check the connection wit