replace mains adapter with Li-poly rechargeable - possible?

[turnbui 0]

hello everyone,

i have a mains operated CCTV camera that has a 12v 2A dc mains adapter. i have no idea what it draws when saving a 10 second night vision motion to on board microSD card. Would it be possible to replace mains adapter with a Li-poly rechargeable batt and need charge say once month or better?

thanks

[almelst 1]

No!

If yor system draws 2A current, it means that it needs 2Ah of 12V battery capacity for an hour of work. For a month you should have 30 days x 24 hours x 2 amps = 1440 Ah of battery capacity which is simply impossible. And you should have another one (smaller) to use while the first one is charging.

[turnbui 0]

Thank you for that succinct explanation.

much appreciated.