Current sense Resistor.
Hello.I can´t calibrate a BQ27510 V1.2 with a 20mOhm current sense resisto, when I read Data Flash, a 10mOhms resistor is configurated. In other one device I calibrate it at 20mOhms without...
View ArticleCalibrate battery with BQ34Z100PW
Hi,I've a problem with the calibration of my battery with the BQ34Z100PW.My battery specs:26.4V12 Ah 316.8WhThe problem is my capacity in the data ram isn't the same as the design capacity I programmed...
View ArticleCannot complete Impedance learning cycle of BQEasy
Every time I go through the 2 day battery learn process, at the very end it errors out saying the CB bit is not set. I have the calibration window closed. SBS is not set to repeat. I have not changed...
View ArticleValues of CC Gain and CC Delta
I am not using the evaluation software, but i am using a microcontroler with i2c to communicate with bq and I did already some writes and reads from flash I am using the bq34z100 and a I have a doubt...
View ArticleBQ27421-G1 Sample Codes
Hello,Are there any sample codes for the BQ27421-G1 fuel gauge?I have a customer looking for code examples to be incorportated into his embedded code. I've provided the EVM User guide, quickstart...
View ArticleMathcad ChemID help
I'm using a Vision CP12170X (12V 17Ahr) sealed lead acid battery and I want to know the ChemID. I've performed the steps explained on "Chemistry ID Selection":Charge the pack to full and allow it to...
View ArticleBQ34Z100 battery capacity
Hi,I have some questions regarding battery capacity reading of BQ34Z100.Is it normal that the full charge capacity jumping up and down while charging or discharging if the battery hasn't gone through...
View ArticleWhere exactly does the BQ27741-G1 'CVM' status bit come from?
In the bq27741-G1 user guide ( http://www.ti.com/lit/pdf/sluuaa3 ) on page 36 it mentions this status bit: CVM = Cell voltage monitor threshold 1 = Cell voltage monitor threshold detected 0 = Cell...
View ArticleDesign Capacity is also used by the gauge in RemainingCapacity( ),...
In the document "SLUA656–December 2012", Configuring the bq2754x-G1 Data Flashpage 7Design Capacity stores the typical capacity, in mAh, of the cell being used in the system. DesignCapacity calculates...
View ArticleMeasuring Current between two 12V 250Ah batteries with bq34z110
Hi,I need to measure currents between two 12V lead-acid batteries (250Ah each) and need to monitor SOC and SOH of both batteries.Is this possible with two bq34z110's?|GND|---------|(-) BATTERY1...
View ArticleBQ34Z110 REGIN
Hi,could the voltage at the REGIN pin of bq34z110 when connected to 24V lead acid battery (2 batteries in series) be closer to 7.48 V? In this case I've also found the internal temperature (by using...
View ArticleUnseal BQ20z45
Hello,I need the unseal key for the BQ20z45.please send it to boris.mayorov@mail.ruThanks
View Articleflashstream and dfi
Hello,Like others in this forum, i need help with programming our gas gauge (BQ27500-v130) for production. Could someone send me the latest version of flashstream and anycode (preferrably in C) and...
View Articlebattery does not charge to full
hie there againwhen i reset bq2084 and 20z70 based batteries whose FCC have droped bellow or risen above the manufacturer FCC value,when i then try to charge using an external non udjustable power...
View ArticleTI USB-GPIO adapter not communicating with bq77910A
The message I get is:Incompatible Firmware VersionAttention: The USB-GPIO interface adapter version is not compatibleDetected version: 1.0.10Required Version: 2.0.19It is recommended that you update...
View ArticleSamsung EB-L1G6LLU Chemistry ID
I am using bq27500 gas gauge with an EB-L1G6LLU battery, 2100mAh.As I cannot see this listed in the TI Chemistry selection table I am attempting a chemistry selection test but without success so far....
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usb interface adapter firmware update fail
Hi, everyoneI tried to update firmware at my interface adapter with the USB-TO-GPIO Firmware Loader. but it didnt work.(V1.2.2 -> V2.0.19 / I want to use BQ77910 EVM ) I checked that there are no...
View ArticleNiMH Fuel Gauge
i am using a 14.4 V NiMH battery with 12 cells in series. I am wanting to implement a Fuel Gauge that would possibly communicate with a Stellaris (TIVA now i believe).I was wondering if anyone could...
View Articlebq34z110EVM: basic questions when used to monitor a string of 12V Lead-Acid...
Hello all,We will soon try the bq34z110EVM demo board and software, to have an overview of its capabilities when monitoring a string of 1 to 4 (or 3 apparantly due to a limitation in the demo board)...
View ArticleMathcad Chemistry Selection Tool (Rev. BP)
I have downloaded the Mathcad Chemistry Selection Tool, file sluc138bp.zip, by clicking on the link in the bq27500-V130 product page but I cannot extract the contents due to 'file invalid' error.Could...
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