Hi all.
I have just bought 4 x LED battery lights than each run off 4 x AA batteries (6v)
I want to use them in a garage where I have no electric power supply as main lighting

I was told after buying a 6v leisure battery that I could run them but after test wiring with two lights on the new battery I saw smoke slightly appearing.

I think I know enough to know that just wiring direct to a battery may not be all I need.

Any help with why and what I need please?

Also please let me know if more info is rerquired

Thanks in advance
Steve

 

A schematic of how the 4 AAs were wired and a schematic of you new wiring configuration.

What type of LEDs?

And what on earth is a "leisure" battery?

 

Ahh ok. Let me get on that.
A leisure battery over here is a smaller car battery that you can use for camping etc (or for leisure).
I'll take some pics also
Ta

 

Well if the manufacturer was relying on the internal resistance of the batteries to limit the current, then you need a resistor.

But also you need to double check and be sure the lights weren’t wired as two batteries in series and then in parallel, yielding 3 volts not 6.

And I assume the smoke was from the LEDs.

 

Ok so I have added a couple of pics and a description of lamp is below...
Specification
Materials: ABS
Lumens: 100% - 500LM 30% - 150LM
Weight: 305g
LED: COB LED
Colour Temperature: 6500-7000K
Battery: 4 x AA batteries (included)
Dimensions: Approx 15 x 15 x 4.5cm
Dimmer Mode: 100% - 30% Brightness
IP Rating: IPX4 - Protects from splashing water, no matter the direction

 

@ ElectricSpidey - Thanks. Good point.
The batteries are basically 4 in a row end to end.
Lamp +battery- +battery- +battery- +battery- lamp

Does that makes sense?

And yes I think a resistor is what I would need but I'm stuck already.
The smoke was kind of coming from LEDs as if they were hot and had liquid on them. But they were not hot at all.

Having just written that.. actually it looked exactly like solder smoke

I can take readings from circuit tester

Thanks for all looking into this

 

Ok so I have added a couple of pics and a description of lamp is below...
Specification
Materials: ABS
Lumens: 100% - 500LM 30% - 150LM
Weight: 305g
LED: COB LED
Colour Temperature: 6500-7000K
Battery: 4 x AA batteries (included)
Dimensions: Approx 15 x 15 x 4.5cm
Dimmer Mode: 100% - 30% Brightness
IP Rating: IPX4 - Protects from splashing water, no matter the direction

Those are LED spotlights. They usually do not require any resistors. Did they ever work with the 4AA? Do they still work with the 4 AAs?

 

Those are LED spotlights. They usually do not require any resistors. Did they ever work with the 4AA? Do they still work with the 4 AAs?

Hi. Sorry spotlights/lamps. That's me be wrong.

They do still work with 4 x AA batteries. They're not damaged luckily but would have been had I left them on hence my cry for help

 

Hi. Sorry spotlights/lamps. That's me be wrong.

They do still work with 4 x AA batteries. They're not damaged luckily but would have been had I left them on hence my cry for help

What are the chip numbers on that board? They are must likely your current regulator and you won't need resistors.


Are you certain you hooked up the garden tractor battery (what they are called here ) with the right polarity?

 

lol The garden tractor battery? Like it
I did have the polarity correct yes.
The chip numbers are attached... Pic 4

 

lol The garden tractor battery? Like it
I did have the polarity correct yes.
The chip numbers are attached... Pic 4

Actually looked at the photo again. That is not a garden tractor battery. We would just call it an SLA Standard Lead Acid.

What is the chip number on the big one?

 

Sealed Lead Acid.

Any markings on the 8-pin IC?

M7 comes up as a 1 A, 1 kV Shottkey diode. Two in parallel makes sense, AND it makes it impossible to damage the unit if the battery power is reversed.

Recheck the 1RD devices. Could they be 1R0?

Recheck the 212 device. Could it be 272?

What is on the bottom side of the board?

Cute light - manufacturer's website on the package?

ak

 

The last two I bought were, "AGM" or absorbent glass mat...not that I can tell the difference without looking them up at...
Hang on...batteryuniversity.com isn't responding.
That's a resource I wouldn't want to lose.

Looks like they are re-booting or something temporary.

 

Sealed Lead Acid.

Any markings on the 8-pin IC?

M7 comes up as a 1 A, 1 kV Shottkey diode. Two in parallel makes sense, AND it makes it impossible to damage the unit if the battery power is reversed.

Recheck the 1RD devices. Could they be 1R0?

Recheck the 212 device. Could it be 272?

What is on the bottom side of the board?

Cute light - manufacturer's website on the package?

ak

Sorry that is right Sealed

 

Some thoughts:

10 watts from four pieces of AA batteries tell me that the battery voltage certainly is not over 5 volt, probably closer to 4.5 volts?

10 watts on a 6 Volt 12 Ah lead battery will be close to the nominal 6 Volt.

And since it's apparently a linear regulator (no inductions), so something must be too hot.