Battery Backup

Can anyone recommend an affordable battery backup solution for my Waze Cam V2s?

I think any ordinary 10,000 to 20,000 MaH USB battery pack, just placed inline between the power adapter and the camera, will give you a few hours of operation. There are threads about it.

Here’s one.

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Unfortunately, most USB battery banks wont. Most of them these days will either charge the battery or supply load. They won’t do both. In other words, as soon as you plug a power source into the battery bank, it shuts off the output. I have a several year old Anker bank that bought specifically because it had that capability. Anker has removed that capability from their current products.

Removed? Huh, wonder if there’s a safety reason. I have a few generic ones and they seem to pass through power without issue.