Ian_R
Casual Member
Hi,
FTTP being installed soon in a rural home. No regular power outages but maybe once per year usually during winter (been very calm this year though) and was badly affected 2022 with a long 6 day outage due to lots of very strong storms.
During that last long outage phone service stayed up and while it wasn't critical it was a nice to have, I don't expect to be able to stay online etc during such an outage but it would be good to have some means of making an emergency phone call if necessary.
Was thinking about UPS options etc for the new ONT and router that will be providing the phone line shortly and it struck me that we already have multiple devices with quite large batteries that are kept charged: laptops, specifically laptops with USB-C PD. Researching this more I found these little modules: https://budgetlightforum.com/t/test-review-of-yzxstudio-zy12pdn-pd-trigger/58515 - module is a "ZY12PDN
It's a little circuit that accepts USB-C PD input and has a selectable voltage output that includes 12V... which made me think putting together a little box that can plug into USB-C PD capable laptops with barrel jack outputs that could power up the ONT and router to make an emergency phone call is entirely possible. Seems like the 5A current limit would be enough as well.
Wouldn't be looking to power anything long term but given the USB-C PD input this could of course be powered by normal power banks as well as laptops etc.
Anyone think this is a very silly idea for any reason?
FTTP being installed soon in a rural home. No regular power outages but maybe once per year usually during winter (been very calm this year though) and was badly affected 2022 with a long 6 day outage due to lots of very strong storms.
During that last long outage phone service stayed up and while it wasn't critical it was a nice to have, I don't expect to be able to stay online etc during such an outage but it would be good to have some means of making an emergency phone call if necessary.
Was thinking about UPS options etc for the new ONT and router that will be providing the phone line shortly and it struck me that we already have multiple devices with quite large batteries that are kept charged: laptops, specifically laptops with USB-C PD. Researching this more I found these little modules: https://budgetlightforum.com/t/test-review-of-yzxstudio-zy12pdn-pd-trigger/58515 - module is a "ZY12PDN
It's a little circuit that accepts USB-C PD input and has a selectable voltage output that includes 12V... which made me think putting together a little box that can plug into USB-C PD capable laptops with barrel jack outputs that could power up the ONT and router to make an emergency phone call is entirely possible. Seems like the 5A current limit would be enough as well.
Wouldn't be looking to power anything long term but given the USB-C PD input this could of course be powered by normal power banks as well as laptops etc.
Anyone think this is a very silly idea for any reason?























