I have just been labelled some sort of overunity nut !!
I live in South Africa and actually am a bit shocked with this type of response. There is nobody that I know that dabble in this type of hype. In this country we are more down to earh and definitely do not go for unproven rubbish as the moderators have have labelled me of doing. I find this lame and childish and this on my first post.
What I want to build is a pulse charger, not an impulse charger. There is no moving parts. I've already rewound a transformer to deliver 500 Volts pulsed with a 555 timer. and wondered what the criteria is. Is this too much to ask ?
Below my original post:
I have scoured the net, sites like battery university and nowhere can I find any real info on what voltage, minimum current, on off times to create a pulse charger for a 12V SLA battery. Some say short duration high voltage pulse (what is high). Some mention a 1 sec pulse etc etc.
Does anyone out there know anything about what parameters to set when building a pulse charger. I have build a high voltage (500V) low amp circuit and when I pulse the battery it makes a clicking sound.
Any advice would be appreciated !!
This is the battery specs:
Specification:
Cells Per Unit = 6
Voltage Per Unit =12
Normal Operating Temperature Range = 25oC±5oC
Capacity = 20Ah@20hr-rate to 1.75V per cell @25oC
Weight = Approx. 5.90 Kg
Max. Discharge Current = 200 A (5 sec)
Internal Resistance = 14m ohm
Operating Temperature Range = Discharge: -20 ~60 Charge: 0oC~50oC Storage: -20oC~60oC
Float charging Voltage = 13.7 to 13.9 VDC/unit Average at 25oC
Recommended Maximum Charging Current Limit = 6A
Equalization and Cycle Service = 14.6 to 14.8 VDC/unit Average at 25oC
Will say a 50 - 60 volt pulse of short duration and @ 6.9A be sufficient ?
I need my faith restored. Any help will be appreciated.
I live in South Africa and actually am a bit shocked with this type of response. There is nobody that I know that dabble in this type of hype. In this country we are more down to earh and definitely do not go for unproven rubbish as the moderators have have labelled me of doing. I find this lame and childish and this on my first post.
What I want to build is a pulse charger, not an impulse charger. There is no moving parts. I've already rewound a transformer to deliver 500 Volts pulsed with a 555 timer. and wondered what the criteria is. Is this too much to ask ?
Below my original post:
I have scoured the net, sites like battery university and nowhere can I find any real info on what voltage, minimum current, on off times to create a pulse charger for a 12V SLA battery. Some say short duration high voltage pulse (what is high). Some mention a 1 sec pulse etc etc.
Does anyone out there know anything about what parameters to set when building a pulse charger. I have build a high voltage (500V) low amp circuit and when I pulse the battery it makes a clicking sound.
Any advice would be appreciated !!
This is the battery specs:
Specification:
Cells Per Unit = 6
Voltage Per Unit =12
Normal Operating Temperature Range = 25oC±5oC
Capacity = 20Ah@20hr-rate to 1.75V per cell @25oC
Weight = Approx. 5.90 Kg
Max. Discharge Current = 200 A (5 sec)
Internal Resistance = 14m ohm
Operating Temperature Range = Discharge: -20 ~60 Charge: 0oC~50oC Storage: -20oC~60oC
Float charging Voltage = 13.7 to 13.9 VDC/unit Average at 25oC
Recommended Maximum Charging Current Limit = 6A
Equalization and Cycle Service = 14.6 to 14.8 VDC/unit Average at 25oC
Will say a 50 - 60 volt pulse of short duration and @ 6.9A be sufficient ?
I need my faith restored. Any help will be appreciated.
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