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I confirmed that the last mode is preserved after powering off/on.
Pictures of Initial Conversion V1
Revision
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V2
As part of this revision, we are going to add a bigger battery to the speaker.
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And voila, all done and running on battery and it sounds amazing!
Revision V3
Going to rework this so I don't need the buck converter. Seems like it is not charging to full currently with the buck converter.
BMS
Previously I had used the following BMS which has separate charge and power connections with a large input voltage. This bms will allow me to remove the buck converter. I will however have to reconfigure my battery to a 2S3P configuration.
2S 2-3A 5-8.4V Red
Size: 62 x 26 x 6.9mm
Charging Voltage range: 8.40-8.45V ± 0.05V
Over-discharge Voltage range: 4.6-5.1V ± 0.05V
Maximum operating current: 2-3A
Maximum instantaneous current: 4-6A
Working temperature: -40 ~ +50°C
Resistance: less than 45mΩ
Wiring
References
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| User Manual |
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| Service Manual |
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