Unseal bq33100
What is the unseal key for the bq33100? I've read the 0x60 address and I have what I think is the default key. However when I write both words to 0x00 the SS flag does not toggle.EDIT: I'm able to...
View ArticleBq34z100 Max Battery Size question
I have the Beq34z100 chip and I want to know if I can use a 3.2v LiFePo4 battery that is 20 amp hours in size?The Data Flash box allows you to set the battery size in mWH format but the maximum number...
View Articlebq20z40 v1.04 software
Hi. I'm trying to repair battery for hp MU06 with bq20z40. This bq20z40 is v1.04, but on Your site i found that bq20z40 has NRND status and most fresh bqeasy software is for bq20z40-R1 v1.05. When I...
View ArticleBQ20Z65-R1 Clock streching
I observe in some cases a random read value ( 1 of 100 read times ) so I start to use the PEC byte, but I often see a wrong CRC value. While digging deeper I had the feeling my issue is a missing clock...
View ArticleProgramming with bq80xRW.ocx
Hi allI have programming with bq80xRW.ocx in VB6 for many applications.But I have a question about that bq80xRW.ocx.Every time i want to use it for multiple process. I have to make an ActiveEXE for...
View ArticleBQ33100 Manufacturer Access and Unseal Key
I have been communicating with the BQ33100 as an I2C slave using an Arduino Uno as the I2C Master. Communications are going well but I cannot access the Manufacturer Access commands. This uses register...
View Articlebq20857 datasheet
Hello,I could not find the datasheet for the 20857DBT IC ... could someone please give it to me?I found a datasheet for the 2085 IC; what is the difference?Thank youMartin
View Articlebq20z65: Wrong RSOC after wakeup from shipping mode
Dear expertsWe just produced new battery packs with bq20z65All BMS boards are programmed with DFI File which contains learning gg-file and all other values like keys and so on.Also calibration was done...
View Articlebq2084 CC Delta
Hello,How does the 32-bit hex value for CC Delta (0xCD->0xD0) relate to the mAh value, e.g. how does 0x92A01600 represent 0.0000323mAh?The datasheet only mentions that the CC Delta is the gain...
View ArticleX10 mode in bq34z110
I am trying to change the mode to X10. After changing the mode to X10 using Bq evaluation software. I canot see any change on the Data RAM parameters.1. How to configure the X10 mode correctly?2. Does...
View ArticleMultiple Instances of bqEASY Sofware with multiple EV2300 or EV2400 units
Hello,I would like to use one PC to control multiple instances of the bqEASY software with multiple EV2300 and/or EV2400 modules. The idea is to log multiple batteries using a single PC. We currently...
View ArticleWhere and when purchase brand new bq40z50?
Hello,I was starting a (very) small series dev with bq3060, for both Li-Ion and LiFePO4 High currents, and was bothered by the HighSide PFets for both CHG and DSCHG, as I'd rather not put NFets on the...
View Articlebq78PL11X API Demo does not find the USB - GPIO adapter and crashes when I...
bq78PL11X API Demo does not find the USB - GPIO adapter and crashes when I click the Discover button. I then opened the API Demo project in C# (the express edition), and traced the problem to the fact...
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Bad capacity prediction and rough temperature/current correction with bq34z100
Hello. I trying use bq34z100 with 4-parallel NCR18650 Panasonic (2900ma) battery set, but after testing got very bad results. Please check my records, maybe you can give me recommendation for improving...
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bq33100 two cells
Hi. I have read docs (bq33100 datasheet, bq33100 EVM guide) and just can't figure out how to connect two cells instead of 5. Here is the schematic of my solar power module (solar cell 200ma_5.1v,...
View ArticleBQ76930 Short Circuit Delay
Short Circuit Delay can be set with Bit 3:4 in Protect1 (0x06) Register. By setting Bit 5 the Delay can be extented up to 6ms.Why is this not described in the datasheet?
View Articlebq20z655 mistake to programming
Hello,I need your help to fixed data flash programming,I am not sure if the vb translation into c code is right because i have a rom.dfi, i launch the c code and he just add some caractere in the...
View ArticleBQ27421-G1 Sleep Current
Hi all,We are using BQ27421-G1A In our system, current in power down mode is below 1mA. So, during that we want our gauge to go in sleep mode. So we can save power. So, we'll have to write that in the...
View Articlebq27421 Watchdog Reset
Hi,I am having an issue with the application example on page 11 in the bq27421-G1 Technical Reference (Literature Number: SLUUAC5). I am able to successfully update the design capacity bytes and I...
View ArticleBQ-27421-G1A configuration
I have been trying to change the parameter of bq-27421 to suit my device. In the tutorial, it only tell to change 4 parameters, which are battery capacity, battery energy, terminate voltage and taper...
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