Hi there
Studying Mechanical engineering but with a keen interest in electronics. Want to convert my longboard to an electric longboard with rechargeable AA batteries as They are cheap to buy, and I think it will be fun to do something a bit more interesting with them rather then remotes and torches
So. I have discovered that most chargers can only handle 15 cells maximum, bummer! But what if I make my circuit so it only charges 15 at any given time?
I have included a crude drawing of what I mean. Each rectangle. Aside from the one that is shaded in. Represents a 15 cell block of Nimh batteries hooked up in series. Would it be possible to use a arduino and transistors (or other device). To allow current to flow through one block over a given time period, say 2 hours? Or, even better, is it possible to create a circuit where once a block of 15 batteries are charged, the arduino diverts power to another block of batteries and begins to charge those? until such time as all batteries are charged?
In the drawing you see 2 transistors, but in reality each block of batteries would have its own transistor.
For the circuit during use. I intend to put place 37 Nimh batteries in series for a total of 44.4 volts (Max my motor can handle)
And connect three packs of 37 in parallel for a total of approximately 8-9 amp hours. The total current drawn should not reach any more than 51 (as max power 2300 according to website. 2300/44.4=51) However the ESC I am using can handle way above this (as stalling may be higher). In fact as each cell will likely give off just below 1.2 volts. I am tempted to just use 40 instead.
The charger I will be using is this
Below are questions I have for you guys
1. assuming batteries are functioning normally and fully charged, will this setup provide enough power without anything going bang?
2. Can i use this set up to charge my battery packs, one after another with transistors using and arduino? And is there an easier way to do this?
3. Are there any holes in my thinking? I really have not a scoopy doo what I'm doing, so any input is appreciated
Thank-you so much!
Studying Mechanical engineering but with a keen interest in electronics. Want to convert my longboard to an electric longboard with rechargeable AA batteries as They are cheap to buy, and I think it will be fun to do something a bit more interesting with them rather then remotes and torches
So. I have discovered that most chargers can only handle 15 cells maximum, bummer! But what if I make my circuit so it only charges 15 at any given time?
I have included a crude drawing of what I mean. Each rectangle. Aside from the one that is shaded in. Represents a 15 cell block of Nimh batteries hooked up in series. Would it be possible to use a arduino and transistors (or other device). To allow current to flow through one block over a given time period, say 2 hours? Or, even better, is it possible to create a circuit where once a block of 15 batteries are charged, the arduino diverts power to another block of batteries and begins to charge those? until such time as all batteries are charged?
In the drawing you see 2 transistors, but in reality each block of batteries would have its own transistor.
For the circuit during use. I intend to put place 37 Nimh batteries in series for a total of 44.4 volts (Max my motor can handle)
And connect three packs of 37 in parallel for a total of approximately 8-9 amp hours. The total current drawn should not reach any more than 51 (as max power 2300 according to website. 2300/44.4=51) However the ESC I am using can handle way above this (as stalling may be higher). In fact as each cell will likely give off just below 1.2 volts. I am tempted to just use 40 instead.
The charger I will be using is this
Below are questions I have for you guys
1. assuming batteries are functioning normally and fully charged, will this setup provide enough power without anything going bang?
2. Can i use this set up to charge my battery packs, one after another with transistors using and arduino? And is there an easier way to do this?
3. Are there any holes in my thinking? I really have not a scoopy doo what I'm doing, so any input is appreciated
Thank-you so much!
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