numberonebikeslover
1 kW
Dear All;
I have been really busy lately; did some work on my bike but couldn't find time to share what I did.
It was always a big problem for me to charge the batteries in a situation when the grid kept changing its voltage continuously throughout 24 hours, varying from as high as 230 volt to as low as 160 volt. Setting a conventional transformer was such a mess. It either over heated the transformer or did not charge the batteries at all.
I have found a high current rate laptop chargers and decided to use them. Did some charging experiments lately and found that few of them in series would work for me. So I bought 4 of them. 3 of them having out put rated at 20volts @ 4500 mA While one of them output rated at 19 volts @ 4700 mA. So a total of 20+20+20+19 = 79 volt. I have fitted all them having 220 parallel connection while output voltage in series to get to 79 volt. Having 6 batteries it will charge at voltage of (79/6 = 13.16) 13.16 volt per battery. I would also keep a check for any kind of balance issues in batteries. The best would be not to discharge them below 12 volt. I am sure that having to have so much power there would be no chance that I will discharge it below 12 volts.
Please do let me know if I can do something better with it.
Sincerely Yours
Naeem
I have been really busy lately; did some work on my bike but couldn't find time to share what I did.
It was always a big problem for me to charge the batteries in a situation when the grid kept changing its voltage continuously throughout 24 hours, varying from as high as 230 volt to as low as 160 volt. Setting a conventional transformer was such a mess. It either over heated the transformer or did not charge the batteries at all.
I have found a high current rate laptop chargers and decided to use them. Did some charging experiments lately and found that few of them in series would work for me. So I bought 4 of them. 3 of them having out put rated at 20volts @ 4500 mA While one of them output rated at 19 volts @ 4700 mA. So a total of 20+20+20+19 = 79 volt. I have fitted all them having 220 parallel connection while output voltage in series to get to 79 volt. Having 6 batteries it will charge at voltage of (79/6 = 13.16) 13.16 volt per battery. I would also keep a check for any kind of balance issues in batteries. The best would be not to discharge them below 12 volt. I am sure that having to have so much power there would be no chance that I will discharge it below 12 volts.
Please do let me know if I can do something better with it.
Sincerely Yours
Naeem