EcoFlow DELTA Pro Ultra Battery (Refurbished) Option:DELTA Pro Ultra Battery (Refurbished) the 500W Alternator Charger does

the 500W Alternator Charger does not support reverse charging & battery maintenance functions

seamless installation

Run 99% of consumer electronics

-What You Get: EcoFlow RAPID 65W GaN Charger

waterproof aluminum alloy

EcoFlow DELTA Pro Ultra Battery (Refurbished) Option:DELTA Pro Ultra Battery (Refurbished) the 500W Alternator Charger doesExpandable capacity Increase the capacity of DELTA Pro Ultra with an extra 6kWh. *If you've purchased three or more battery packs, please contact our customer service team to claim your EcoFlow Fixing Metal Tab, which is necessary for securely stacking your battery packs. Highlights: One Month Backup: 6kWh for up to two day backup, scalable to 90kWh for one month coverage Space Saving: Stack up the system in a neat, mess free way One Minute Setup: