1. I am new here, just registered a minute ago. Greetings!
I am not an engeenier of any sort; used to make portable radios at my younger age- transistors just appeared!
2. I recently added "electic bike conversion kit" to my regular mountain bike. Usually I don't take my bike very far; this kit nominal range is 19-34 miles (contingent on rider's weight, terrain, etc.). My motor is Direct Drive, powered by 36V 9 Ah battery - actually its pack consists of 3 12V batteries in series.
Strangely, there is no battery discharge LED indicator, which is a standard feature of most kits. I have a digital multimeter but it would be esthaetically unpleasant, odd looking and quite awkward to mount it on a handle bar. I wonder: could I build a simple LED indicator to measure battery voltage, so I'd know in advance that battery is getting low and it's time to recharge or make a U-turn and go home? If the answer is yes, where can I find diagrams, etc.?
I am not an engeenier of any sort; used to make portable radios at my younger age- transistors just appeared!
2. I recently added "electic bike conversion kit" to my regular mountain bike. Usually I don't take my bike very far; this kit nominal range is 19-34 miles (contingent on rider's weight, terrain, etc.). My motor is Direct Drive, powered by 36V 9 Ah battery - actually its pack consists of 3 12V batteries in series.
Strangely, there is no battery discharge LED indicator, which is a standard feature of most kits. I have a digital multimeter but it would be esthaetically unpleasant, odd looking and quite awkward to mount it on a handle bar. I wonder: could I build a simple LED indicator to measure battery voltage, so I'd know in advance that battery is getting low and it's time to recharge or make a U-turn and go home? If the answer is yes, where can I find diagrams, etc.?