I have a portable Bluetooth speaker that broke. The unit functions fine off of AC but will not run off of the battery (12V SLA).
When plugged in it IS charging the battery.
I would like some assistance in designing a circuit that would :
A. Have two DC Voltage inputs. One from the OEM power supply (it's fairly steady at about 14.4 volts).
The other is the 12v SLA battery.
B. Give the AC power supply priority. If it's plugged in I want it to power from the main.
C. Charge the battery while plugged in.
D. I'm looking for something more on the simpler side. minimal surface mount components anyway...
Any assistance would be greatly appreciated. Thanks in advance.
When plugged in it IS charging the battery.
I would like some assistance in designing a circuit that would :
A. Have two DC Voltage inputs. One from the OEM power supply (it's fairly steady at about 14.4 volts).
The other is the 12v SLA battery.
B. Give the AC power supply priority. If it's plugged in I want it to power from the main.
C. Charge the battery while plugged in.
D. I'm looking for something more on the simpler side. minimal surface mount components anyway...
Any assistance would be greatly appreciated. Thanks in advance.