DesignCapacity() is correct but FullChargeCapacity() is incorrect
Hi,I am using a BQ27421 with a 120 mAh Li-Ion Polymer battery. I am programming the Design Capacity to 120 mAh and the Design Energy to 444 mWh using the TI CC2541. After programming, the...
View ArticleGeneral Protection Question for Cell Phone Applications - Transistor Rating
Kind peers,First, I think I know the answer to this. I am just looking for buddy-checks.Suppose I am designing protection for a cell-phone ... a 1-cell application. I am protecting to I(max) of 2Amp,...
View Articlebq27541-v200
Hi.In the 27541-v200 datasheet SLUSA11B, Table 1 on page 9 indicates the available energy value from command 0x22 is described as having the units 10 mWhr. However, on page 15 available energy is...
View ArticleIs there an ic available from Texas for balancing 12 series connected...
Is there an ic available from Texas for balancing 12 series connected supercapacitors?I need to charge them at 4A maximum at a constant voltage of 30V (12 x 2.5V = 30V)Thank you,Stephan.
View ArticleBQ27410 Cycle counter
Hi,I'm using the BQ27410 Fuel Gauge in my design, and now I'm going a bit deeper into designing.My question is I have been using the Fuel Gauge for some time now, but I haven't been able to get the...
View Articlebq27510 learning cycle exemple
Hello,Can't create golden image after two months trying. Could someone share his working RAM and FLASH logs please ? I want to compare it with my config.I use bq27510G3 with battery SAFT MP176065 (Chem...
View ArticleGolden file for production
Hi,I have prepared a Golden file and I would like to use the data to program the rest of my battery packs.When I write the data flash image to another device, then is impossible for me to calibrate it....
View ArticleBq34z100 Interfacing
Hello,I am currently using a Li-ion battery with 11.1V and 26.4 Ah. I was looking to use the BQ34Z100 chip in the "Multi-Cell and 5-LED Display" configuration. However, I really only want to utilize...
View ArticleBQ34Z100EVM Calibration
Hi,I'm using the BQ34Z100EVM with the EV2300 evaluation module to develop a battery monitoring system for a 12V, 40AH LiFePO4 battery. The BQ34Z100EVM board is set up for Multi Cell operation, with...
View ArticleBQ33100 capacitance measurement
To anyone who may concern,I am using BQ33100 for capacitance measurement. I found the results were different from time to time on the same capacitor.If I send learn command to BQ33100 immediately after...
View Articleunseal bq20z45 battery asus
Hello,I need the unseal key for the BQ20z45 battery asus A32-k55please send it to doanbattery@yahoo.comThanks
View ArticleBq2016 General Questions
Hello everyone,I have a few questions about the Bq2016 Fuel Gauge IC that hope someone may assist me on.The first questions I have is about the sense resistor. I am using a 14.4 V NiMH rechargeable...
View Articlebq27510-G2 Writing to Dataflash
I am currently using bq Evalution Software for programming .dfi file to battery gauge IC. And its works properly.But for production purpose this procedure is quite time consuming.I found from the...
View ArticleProduction flow bq40z50
Dear all,Ihave acquired a bq40z50EVMmodule and installed the Battery Management Studio Version 1.3.9 and I am just about to start evaluating this new device for a new application. I have also...
View ArticleBattery Percentage relation with Battery Capacity
I am using 2300mAh Battery and bq27510-g2 has default 1000mAh.I have tested that if I change Battery capacity, Percentage value doesn’t change.So if I use default configuration with 2300mAh battery....
View Articlebq20z655 eval kit
Hi,I have the bq20z655 eval kit wired to a static 5 bar LCD on TB5 and TB6. I have the mode set to LCD in CFG C.I get the LEDs flashing at 20Hz but I have no backphase out of pin 12 "common" so LCD...
View ArticleBQ33100. connect more than 5 ultracapacitors
Hello, I will start to use the chip bq33100. i received 3 free samples of this chip.I know that I need the Super Capacitor Pack Manager EVM (BQ33100EVM-001) and the interface boardEV2300 EVM to...
View ArticleProblem in reading capacity
Hi, We are using bq27200 with Samsung 2500mAh Battery for our Custom board. I am able to read battery capacity and other parameters.But Help me on how to calculate battery capacity once after resetting...
View ArticleMaximum Battery Capacity supported by BQ34Z110
Please let me know if there is a way to increase the supported battery size from 320Ah to 600Ah or high. Can the maximum supported current be increased to 500A. It is a lead acid battery monitoring...
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bq27425-G2A / SOHloadI max
Hi,Now I checked the value of SOHloadI by using bqEVSW and it was 50 in binary and 0032 in hex, so I believe that the maximum value of zero of SOHloadI may be incorrect. Please check it and give your...
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