Finished building the Roadster stereo model. Having built four Aries versions (see other posts) the goal here was to make a bluetooth stereo with a battery backup and internal power supply to both charge the batteries when plugged in and to run the system while charging.
Running a test on the battery capabilities. This of course is a general average…volume and input source have a large affect on the rating. Hoping to get the projected 6 hours realistic about 4. This system incorporates a 50w variable power source connected to the main amplifier board rated at 50w. The installed “battery charge bank” of three JETBeam JL260 18650 2600mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Batteries is rated for 500 charge cycles. The charging is regulated for over and low voltage charging due to the amp range on the power conversion and voltage input sliding scale. Also changed the indicator lights to be less bright. A 1/4″ plexi strip is introduced across the top.
Next up is a 20w solar panel to power this off grid!