Posted by: @mediriffat

Is there any issu regading the hardware or firmware ?  

 This battery has bq9000 chip with Sanyo firmware. Sanyo uses special pulse charge algorithm which sometimes confuses NLBA1 device. In laptop battery should be charged fine. If you still want to fully charge it outside laptop, there are 2 methods. 

Method 1

Use Regulated Power Supply. Set its trimmers to the values requested by the chip. In your case it is 12600mV, 1860mA. Wait until current will drop to zero. It means cells are fully charged. 

Method 2 

Use NLBA1 BatInfo page. Set "Output voltage" to Charge Voltage requested by the chip. In this case 12600. Check "Allow custom voltage" to do it. Press "Power On" button. Press "Read" button to monitor RSoC % and current. Wait until current drops to small value and RSoC increases to 100. Current should be monitored visually in this case. If it goes over 3000mA, charge procedure should be stopped to prevent device overload. 

@tracker135n9 

In laptop, battery charge stuck at 58%. Then I tested by NLBA1 and yes charge stuck at 58%. Then I try to calibrate. at beginning it increase slowly, until approx 1 hour it reach 68% then stuck. for 30 minutea add it still stuck at 68%.

By your advice, I run method 2, running until 30 minutes but RSoC stay the same at 68

I honestly doubt the authenticity of this battery. My question : Is it possible for eeprom firmware to be copied from an original battery and then injected into a compatible one?

Surprisingly, I can read and save the EEPROM without going through the unseal process

 Send eeprom to email for inspection. 

 to [email protected] 

@tracker135n9 

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