- #1
Panamanian
- 8
- 0
Hi, i 'm new here. (I 'm from Panama city, Panama).
I know very, very little from electricity and those stuffes. I hope you can help me out.
If I have a battery, say: 12v / 7ah
How long will it last (in ideal scenario), if I power a device that is: (one at the time).
1. 7 amp
2. 3.5 amp
3. 35 amp
4. 70 amp
Also, why do people say, that when you charge any rechargable battery, it should be from 10 to maximum 15% of its total ah?? However my cellphone (NOKIA N8) is: Standard battery, Li-Ion 1200 mAh (1.2ah) (BL-4D) and it's charged (from full discharge) in exactly 1 hour and 45 mins = 105 mins? that means that: 11.43 ma get in per minute, and 685.71 ma per hour (about 57.14% per hour). Why that exception?
So, can I charge a car 50ah battery in 30 minutes by charging it with 100amp?
50/100=0.5hours
Thanks
I know very, very little from electricity and those stuffes. I hope you can help me out.
If I have a battery, say: 12v / 7ah
How long will it last (in ideal scenario), if I power a device that is: (one at the time).
1. 7 amp
2. 3.5 amp
3. 35 amp
4. 70 amp
Also, why do people say, that when you charge any rechargable battery, it should be from 10 to maximum 15% of its total ah?? However my cellphone (NOKIA N8) is: Standard battery, Li-Ion 1200 mAh (1.2ah) (BL-4D) and it's charged (from full discharge) in exactly 1 hour and 45 mins = 105 mins? that means that: 11.43 ma get in per minute, and 685.71 ma per hour (about 57.14% per hour). Why that exception?
So, can I charge a car 50ah battery in 30 minutes by charging it with 100amp?
50/100=0.5hours
Thanks