The DC-UPS powers your equipment within the vehicle utilizing the vehicle electrical system, but switches to external battery power when the vehicle's battery is eliminated, stolen, or drops beneath a predetermined voltage, acting like a battery backup (BBU) and power conditioner. Neither ZDNET nor the creator are compensated for these https://ananya-lipe82357.suomiblog.com/the-single-best-strategy-to-use-for-dc-power-supply-backup-49707874