The low battery warning light flashes even when the batteries are fully charged. We tried several different batteries and it still does it. The camera will stay on for 15 minutes and then it will shut off

check the condition of the batteries if older that 3 years
the internals expand and split the outer cases
even though they may indicate fully charged , the capacity to run then pc may be severely limited making the alarm show

The low battery light will stop flashing when the new battery you just installed become fully charged. It will take some time for the new battery to become fully charged.

The light usually changes colors or goes from flashing to solid even from a light being on it going off when charged. Every camera is different. Normally a good hour will fully charge most camera batteries.

has your battery being replaced new one might not have sensor if so you can fit a 50 k resistor between the positive terminal and sensor wire located next to the battery this will stop light flashing

According to the owners manual for these swimming pool lights, this is what each colored indicator means. Hope this helps.


Solid green
The battery pack is fully charged.
Slow flashing green
The battery pack is almost fully charged.
Slow flashing yellow
The battery pack is half charged.
Medium flashing yellow
The battery pack is less than half charged.
Fast flashing yellow
The battery pack has almost no charge.
Fast flashing red
A charging error has occurred and the light should be unplugged and then plugged back in. If the Fast Flashing Red persists after several attempts, the battery condition is questionable.



Also in the trouble shooting guide, it mentions this:


Problem: Red Indicator Light Is Flashing While Charging

Solution:
A red flashing indicator light when charging indicates a selftest
error condition. Unplug the product and plug it in again.
Try this several times; if the indicator light continues to flash
red, unplug the GlowBuoy and take it to an authorized service
depot.

If the computer is connected to an electrical outlet, the light operates as follows:

• Solid green: The battery is charging.
  
  
• Flashing green: The battery is almost fully charged.
  
  

If the computer is running on a battery, the light operates as follows:

• Off: The battery is adequately charged (or the computer is turned off).
  
  
• Flashing orange: The battery charge is low.
  
  
• Solid orange: The battery charge is critically low.

Looks like the AC adaptor is faulty.

Same thing happened to me when I used alkaline batteries. Have you tried fully charged NiMH? If not you may have a "leak". Your next option is the service center.

Please eject camera battery and clean with a pin your battery tip in your camera with care fully.

Hope its helpful to you

The flash does not charge separate from the rest of the camera. Try cleaning the flash sensor on the front of the camera or the flash led may be bad.

Secondly, this light functions as a flash sensor which is trying to tell you that you need to use a flash although you may have the flash manually turned off. looks like a bolt of lightning with a circle/slash through it.

Not sure if you try fresh Alkaline battery. Try it if you havn't already. Fully charged batteries, how do you know it fully charged? The "charger said so"? Your batteries or charger might give you a fault peak reading. Try fresh battery or AC adepter and go from there.