HylanderUS
New Member
- Joined
- Mar 6, 2021
- Messages
- 3
Okay beginner here, I might be misunderstanding something so bear with me:
I built the milk crate system from one of Will's videos, with a 50Ah 12V Ampere Time battery. All works well, except the whole thing has some parasitic drain, so the battery empties itself over the course of a few weeks. I measured and found there's constant draw of 0.3A. Disconnected everything to figure out what's drawing, and then just for baseline I measured amp draw between the battery poles themselves....and it's 0.3A. Wth? Is this normal? Am I measuring something wrong? What is even drawing power here, is it the internal BMS of the battery? At 0.3A the 50Ah battery will drain itself in ~150h (right?), so that's not really a viable thing to have as "backup storage" if it becomes unusable within a week. Is this normal?
I built the milk crate system from one of Will's videos, with a 50Ah 12V Ampere Time battery. All works well, except the whole thing has some parasitic drain, so the battery empties itself over the course of a few weeks. I measured and found there's constant draw of 0.3A. Disconnected everything to figure out what's drawing, and then just for baseline I measured amp draw between the battery poles themselves....and it's 0.3A. Wth? Is this normal? Am I measuring something wrong? What is even drawing power here, is it the internal BMS of the battery? At 0.3A the 50Ah battery will drain itself in ~150h (right?), so that's not really a viable thing to have as "backup storage" if it becomes unusable within a week. Is this normal?