David Bowling's Continuous Charging Device

[Groundloop]

@All,

Did a test today with my 42 Ah batteries. Here is what I logged:

"Test of David Bowling's Continuous Charging Device

All three batteries are FIAMM-GS 12V 42Ah.
Load are 12 Volt 25 Watt/h light bulb.
Motor is a MABUCHI RS-775SH and also a LESHI FRS-550PM 60023-12V.
The LEHSI motor is from a 12 Volt drill unit.

START VOLTAGE:

Battery 1 = 12.69 Volt Charged
Battery 2 = 12.71 Volt Charged
Battery 3 =  0,37 Volt Not charged.

Test start: Time=20:00 Motor does NOT run.

Motor starts to run Time=20:05
Battery 3 climbed to 14,29 Volt in 5 minutes.

Time=20:20 Disconnected motor.
Battery 1 = 12,47V Battery 2 = 12,48V
Battery 3 dropped to 7,5 Volt in 5 minutes.

Time=20:25 Connected motor again.
Motor is running, waiting for motor to stop.

Time=20:35 Motor will not stop. Disconnected motor
and connected a new motor. The new motor is
a LESHI FRS-550PM 60023-12V. Motor did run fast
and light bulb went down to dim.

Time=20:45 My "dead" battery has charged up to 10,40V.
Battery 1 down to 12,42V and Battery 1 down to 12,40V.
Motor running steady at high speed.

Time=21:00 Disconnected the motor. The "dead" battery
has gained voltage to 10,67V. Connected the light bulb
across battery 3. The light bulb did light. This proves
that my "dead" battery is NOT "dead" enough.

How to kill a battery? That is the question."

Groundloop.

[Anothertruthfinder]

thanks @groundloop - just shows my lack of knowledge in this area lol but ill be careful and follow your advice - i will have a dead battery one day! hehe

i was looking at original photos of davids setup and i believe he said it was a golf cart motor, i found something similar on ebay with gearbox - http://cgi.ebay.co.uk/180w-12-Volt-DC-motor-gearbox-unit-for-golf-trolleys_W0QQitemZ170230452097QQihZ007QQcategoryZ40155QQtcZphotoQQcmdZViewItemQQ_trksidZp1742.m153.l1262

this is 180 watt now assuming its similar wattage etc. this baby draws approx 15 amps, david had 18ahr batteries - similar ratings, just wondering if thats maybe a prinicple of it to have a motor thats just below one of the battery's ahr rating in the circuit that would then make for easier scalability and replication.

thanks again,
eel

[Groundloop]

@Anothertruthfinder,

You maybe right. I do not have to same motor or batteries.
Also, it is very hard to "kill" a lead acid battery, it seems.

I did see the motor "did not run at first" when the "dead" battery was close to zero ( 0,37V) volt.
But after a while the "dead" battery gained charge and the motor just speeded up.

Groundloop.

[Anothertruthfinder]

 @ groundloop - time will tell i guess also when i finally get my dead bat3 i think i'll be at the very raw basics with just the 3 batts and a motor and see if i can replicate the initial signs david had with just those components
@ all - keep up the good fight folks!

eel

[Cap-Z-ro]

Try hooking up the battery to a lawyer or a politician...that should drain the life out of it.

Regards...