BQ34Z110 and BQ34Z100-G1 data reset when battery is replaced.
Greetings.We are using two kind of fuel gauges (BQ34Z110 and BQ34Z100-G1) to monitor the state of lead-acid battery. In our application the battery is detachable, and fuel gauge stays in our device...
View Articlebq40z50 can't charge
Hi all,I am facing a problem that can't charge 2-Series Li-on battery with bq40z50 and bq24735.In 0x16 BatteryStatus(): error code is UnknownError. OperationStatus()[XCHG] = 1 and...
View ArticleLearning cycle VOK (bq27510-g3)
Hi,after the first step of the cycle the battery is completely empty (~ 2.8 volt).can it reach a ~3-3.3 volt after a 5 hour rest without any charging ?i see the default for OK voltage is 2.8 volt, what...
View ArticleInterpretation of Firmware version for Bq27510-G3
In trying to determine which versions of hardware and firmware that are implemented on our company's fuel gauges, the GetFirmwareVersion and GetHardwareVersion commands were implemented. The values...
View Articlebq34z100-g1 Flash access
Hi,Thank you to clarify the following commands : 8.3.2.16 DataFlashBlock(): 0x3FUNSEALED Access: If BlockDataControl has been set to 0x00, this command directs which data flash block willbe accessed by...
View ArticleClik here to view.
BQ27510-G3 Checksum issue while changing capacity
Hi,I fail to update the design capacity to 1800 (0x0708), can you ensure my step is correct? I done a read after i write new capacity and it report 0x07 0x08, which means my capacity changed...
View ArticleBQ78350 IPSCALE, Data Memory Values and GPC log files
I am having difficulty determining which data memory values need to be changed as a result of adjusting the IPSCALE configuration setting in the BQ78350. Reading through the technical reference manual...
View ArticleCell Balance Configuration
I am running 8 packs under charge/discharge cycling and have a pack with both a CB and VIMR Permanent Fail. The cells are unbalanced with voltages of: 1: 3466 mV2: 3093 mV3: 3081 mVThe CB times in the...
View ArticleClik here to view.
Programmatically accessing the BQ-27441 fuel gauge using Raspberry PI
I am using a Raspberry PI - B+, although my question is generic to any micro-controller board out there like Arduino. I have a BQ27441EVM-G1B, and I want to communicate with it with my own program, and...
View ArticleClik here to view.
Import Calibration Parameters Problem
HI all,I have a problem with import Calibration parameter with .qq.csv files. When I used Import in bqStudio all parameters except Calibration parameters has Import.Screen shoot with step procedure :1-...
View Articlebq24250 how to stop charging?
Good day.I'm using bq24250 + bq27532During charging process, I can measure "State of Charge" (percent of full battery charge) and can detect full charge.The question is how to stop charging process. Is...
View ArticleChemistry ID calculator error for FDK Ni-MH cells
Hi, I submitted the data from the charge/discharge cycle to get a new Chemistry ID as instructed in the SLVA725 instruction manual, but it appears that I am getting an error and a couple warnings from...
View Articlebq20z45-R1 Waking Up From Shutdown
I am using a bq20z45-R1 for fuel gauging. I was wondering what conditions will wake this fuel gauge up after a successful shutdown command. I do not seem to be able to find the criterion in the...
View ArticleClik here to view.
external DSG mosfet short
Hi,I'm using bq20z90 and bq29330 in my actual board, after we run few testing, pack+ and pack - will become 0V and we found that the Q5 are damage,it is this Q5(please refer to below pictures) for...
View ArticleSoftware for EV2400 for Windows 10
Is there a Software for EV2400 that will work with Windows 10 OS?If so, please give a link to download it. Regards, R. Koosha
View ArticleBQ34Z100-G1 - Maximum Distance PbA Battery terminals for reliable measurement
Hi,Typically automotive batteries are placed under the hood and the temperature level there is usually beyond the standard 85 degree C.I am considering the option of keeping the device and electronics...
View ArticleBQ27531-G1 production programming
Hi,I want to include host side programming of DataFlash within BQ27531-G1 for production. When programming the DataFlash from the Gaugestudio PC software I have traced the I2C data between host (PC +...
View ArticleClik here to view.
bqEasy tool for bq20z95 gas gauge
Hi,I'm working on a Smart Battery which has TI's bq20z95 IC. For extracting and understanding the various data flash parameters I need the bqEasy tool, but I couldn't find it in the bq20z95 product...
View ArticleBQ27621 alarm
HiI have a problem with getting a low voltage alarm from the BQ27621. The datasheets states that setting bit BATLOWEN high should do so. I can see it's enables because the SOC interrupts disappears....
View Articlegas gauge for high capacity, 100 Ah, 24 V lithium iron phosphate battery pack
We are already using a TI chip (BQ76PL536A) for monitoring and protection, and using voltage sensing as a basic gas gauge. Can we add another device to give us a more accurate measurement of available...
View Article