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12v battery charger options for A7Rii


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Something to charge batts in the camera while in a car via lighter port? If that's what you need to do get a 12V USB adapter and connect cable to camera. Any external battery charger comes with an automobile connection. Something like this charges via USB and can be charged via a power bank or plugging into the lighter port. Twenty bucks. The Watson dual battery charger (not the one shown here) I use also charges other batteries via interchangeable plates and has a percentage-o-meter and will operate off 12v. Never hooked it up to 12v because I have 10 batteries I can take to a shoot if I need that many.

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Charging via USB is really slow, compared to a dedicated charger.

For on-the-road charging I'd recommend a 12V  inverter. They come in all different load ratings and output voltage configurations. Select one whose output voltage matches your country's. Then connect a portable socket outlet to it and you'll be completely independent of brand or type of camera, smartphone or else to charge.

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