David Bowling's Continuous Charging Device

[Groundloop]

@slayer007,

Yes.

Thanks for the link.

Groundloop.

[pese]

what is the effect of this circuit?
The motor is running an 24 volts. the back EMF from this Motor
harge an battery with (only) 12 volts.
Can i find any additional power on the output that comes not from
losts from the 24 volt input-battery (2 time 12volts
(

[Groundloop]

@pese,

The effect of this circuit is that both input batteries gets discharged after a while.
I'm trying to change that.

Groundloop.

[Groundloop]

@All,

OK, my tunable coil is done. I tested this setup but my input batteries is depleted and
needs a charging. Will be back later........

Groundloop.

[Goat]

Hi All
Just a quick update...

I received the CIM motor today and hooked it using 2 12V 7.5 Ah batteries on #1 & #2 and several different "Dead" batteries on #3. The motor started up on everyone of the dead batteries so I'm still looking for the perfect dead battery out there to get this working with this particular motor    Figured I'd start with the 12V 7.5 Ah batteries and work up to 18 Ah batteries if needed, the present 12V 7.5 Ah batteries are getting the motor running so I'm gonna try to find a better dead battery which will be cheaper than buying 2 new 18 Ah ones   If not I'll upgrade if needed 

Here are the specs on the (FR801-001) motor that I got if that helps anyone in comparison to the one that David used:

Banebots FIRST CIM 12V 5280 RPM 345 oz-in Brushed DC Motor
• 5280 no load rpm at 12V
• 12V nominal voltage
• Stall torque: 343oz-in

The Banebots FIRST CIM 12V 5280 RPM 345 oz-in Brushed DC Motor is a CIM motor identical to the one supplied by FIRST (FR801-001). This motor is LEGAL for FIRST competition use. Also available are 56mm gearboxes for these motors to make great robot propulsion systems

Dimensions:
• Diameter: 6.2cm
• Length (without shaft): 11.2cm
• Shaft Length: 3.3cm
• Shaft Diameter: 8mm

Specifications:
• Voltage range: 12V or less
• Nominal Voltage: 12V
• Stall Torque: 343oz-in
• Stall Current: 115A
• Kt: 2.98oz-in/A
• Kv: 442.5 rpm/V
• Efficiency: 65%

Banebots Number: M4-R0062-12

@ Groundloop .... Thanks for all the help this far and good luck on your latest 

Regards,
Paul