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Notebooks/HP/ProBook_430-G1/cpuz1.PNG' alt='Battery Check Software For Hp Laptop' title='Battery Check Software For Hp Laptop' />Power reset your laptop without erasing personal data when Windows or other software freezes, or an external device is not responding. Resolution 1. 36. Graphics Intel HD Graphics. Shared graphics card. Interfaces and connectivity Multi card media card reader. Secure Digital SD, Multi Media Card MMC compatible. USB 2. 0 port. 2 USB 3. F6C445B8E8A2B4?v=1.0' alt='Battery Check Software For Hp Laptop' title='Battery Check Software For Hp Laptop' />HDMI port. Bluetooth. Wi Fi enabled. Multimedia features Built in webcam. Built in mic. DTS sound system. Software included. General features Size H1. Battery Check Software For Hp Laptop' title='Battery Check Software For Hp Laptop' />4400mAh Laptop Battery for Compaq Presario and HP Envy. I noticed my laptop was not charging when plugged in. It says plugged in, not charging. The battery eventually died and I left it alone for a few 5122059. This laptop has a power problem. The battery stops charging when I move the AC adapter connector inside the jack. W2. 2. 6, D3. 3. 7cm. Weight 1. 4. 4kg. EAN 1. 90. 78. 07. Testing laptop battery pinout, SMBus, charge capacity. Introduction As a result of visiting Hamfest, I ended up with a laptop to take apart a fairly new Toshiba Satellite C6. D with a broken screen. Its not a Hamfest if you dont bring home something to take apart of course Today well be testing the battery it came with to see if its salvageable. The date code says  it was made in 1. Patient all hooked up. Initial measurements. Label data indicates we are dealing with a 1. V 4. 4. Ah pack. Since a typical Li Ion cell is around 2 3. Ah and 3. 6 4. 2. V, that tells us the pack has 6 cells arranged as 3. Series. 2Parallel or 3. S2. P. The battery was fully depleted at the time of purchase and would not power the laptop. I could also not see any voltage present on any of its pins. Since we are dealing with a parts laptop here, an easy way to figure out full pinout is to look at the motherboard end of things Battery connector details. It is pretty obvious that the larger blades are power and ground, and by measuring resistance to case ground we can tell that the leftmost two pins are ground. The next two pins 3,4 are routed through a SOT2. ZenerTVS for ESD protection of comm lines. Pin 5 has a single channel TVSDiode looking thing. That most likely means we have SMbus a typical comm channel for notebook batteries on pins 3 and 4, and a battery temperature on pin 5. Pins 6 and 7 remain mystery for now and pins 8 and 9 are the battery positive. Next step is to try waking the battery up. We apply normal for it voltage in the range of 3 4. V per cell and see if it takesany current. Nothing happens, no current is going in. Plan B  put the battery back in laptop and observe signals on the pin. With the laptop powered by a bench power supply, we can see a notable surrent spike when battery is inserted, so something does happen. Voltage on the pins is now 1. V, meaning the charger is trying to do its job but no current is actually making it in. Poking around with a scope, we can see activity on pins 3 and 4. And pin 3 definitely looks like an I2. C clock, pulsing nonstop during the comm intervals, while pin 4 looks like an I2. C data. Ok weve just confirmed 3 and 4 are indeed the SMbus pins and the battery is talking to the charger. That seems to indicate it is alive, but too discharged to allow for charging most likely staying in precharge mode with a large series resistor limiting input current to very low values. Leaving things alone for a bit and checking back in a few hours, the power supply current went up drastically from about 0. A at 1. 9V to 1. 5. A. That may be a good sign battery is now taking current. Voltage check confirms that we are now at 1. V and rising, meaning the fast charge constant current phase is on, and the battery is finally charging. Well, might as well let it finish. Once the laptops charge indicator goes from yellow to green and power supply current drops, we can start the tests. First check is battery voltage and once again it is 0. V. At the same time, I can plug into the laptop and it stays powered. Something else is going on time to check if we are missing anything. It then occurs to me that some batteries have a signal called System Present, and only allow chargingdischarging if they see that signal. Well, we still have pins 6 and 7 to figure out. Measuring the pin to ground resistance in and out of system we see that the laptop pulls pin 6 to ground when battery is inserted. A quick test with a resistor between pins 6 and 1 confirmed the guess battery voltage appears on the positive terminals. In the absence of proper connector, diodes will do. Now we can run tests on the bench. First we connect a TI EV2. TI EV2. 30. 0 USB to I2. CSMBus adapterand wire its SMB Clk, Data and ground to the battery. We then use TIs evaluation software to look at the reported data. It is not known if the chipset inside the battery is indeed the part this program was written for or if its even a TI chipset in the first place, but luckily SMBus standard defines the base set of registers everybody has to support TI Smart battery interface GUIFrom SMBUs data we can tell that the battery cells are healthy, well balanced and fully charged. The pack saw 6 discharge cycles and thinks its full capacity is 4. Ah, just as indicate don the label. So far so good. Next we apply constant current load and run a discharge cycle to see how much capacity we can get out of the battery. Running at 1. 5. A with a 4. AH capacity, we should see close to 3 hours of runtime. Results After 2. A, the battery reported 0 capacity. It also adjusted full charge capacity down a bit to 4. Ah. Battery state at the end of discharge, starting charge. Thats the amount of charge internal gas gauge counted going out during the last discharge cycle. So we have a 4. Ah pack, out of 4. Ah initial design capacity, or about 9. Seems like a reasonably healthy battery that should provide service for a while. Links and resources For those interested, here are the things mentioned Pinout 1,2 GND, 3 SCL, 4. SDA, 5 Temp, 6 Sys. Present, 7, 8,9 BATTI EV2. TI bq. Easy software http www.