The hAP ax3 Power Supply Output Specifications (US) is 24VDC @ 1.5A (Model:SAW36-240-1500U)
The hAP ax3 Router's input Specifications show 12-28VDC , maximum of 38 Watts, but typically 15W without POE
It is preferential to be at a higher voltage point within the 12-28VDC input Window, (24VDC)
I have looked considerably online for a reasonable 24V DC Battery Backup solution (All in one to include batteries) and have so far haven't been able to find an economical solution which would deliver ~8 Hour Run Time @ 24V 15 Watt Load.
The following is what I have come up with as a more economical solution but wanted to ask others if they had found a competitive all-in-one solution that I might have missed, or if there might be any better DIY configurations someone else may be currently using as compared to the one I have tentatively come up with below.
1) 24V 3A 72W Power Supply: ~$12.89
2) PWM Solar Panel Battery Regulator Charge Controller 10A ~$7.93 (11/26/23 ebay item 374884141603)
3) 12V 17AH Battery or 24V 7AH Battery(x2 in series) ~ $40
[Total: ~$61]
The higher Amp capacity (3A) of the 24V Power Supply (Max load demand of 1.5A) is considered for Battery Charging Allowance.
I would just connect the 24VDC Power Supply output to the Solar Panel Input of the Solar Charge Controller. The Solar Charge Controller supports Voltage & Current regulations/restrictions as well as protection circuits for Battery Cut off to prevent damage, while also supporting the discrete Load Connection (24VDC) to the hAP ax3.
I believe I could configure either a single 12VDC Battery @ 17AH or two 12VDC Batteries in Series (24VDC) ~7AH while maintaining the 24VDC Load.
Thanks in advance for any suggestions!