This page documents all questions and problems related to the PSU (Power Supply Unit).

Open Questions and Problems

• Q1: What triggers the battery status error code 7 (unknown error) on the gauge.

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Tasks

• T1: Create initial setup manual.
• T2: Create power usage logger.

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Answered questions and design decisions

bq25700A Datasheet:

8.6.6.1 Input Current Registers

To set the maximum input current limit, write a 16-bit IIN_HOST register command (REG0x3F()) using the data format listed in Table 31 and Table 32. When using a 10-mΩ sense resistor, the charger provides an input- current limit range of 50 mA to 6400 mA, with 50-mA resolution. The default current limit is 3.3 A. Due to the USB current setting requirement, the register setting specifies the maximum current instead of the typical current. Upon adapter removal, the input current limit is reset to the default value of 3.3 A. The register offset is 50 mA. With code 0, the input current limit is 50 mA.