Since the voltage greatly affects wattage the pad draws being plugged in and holding 14.5v, then 13.6v will throw off the results somewhat compared to if the battery was powering it at a lower voltage from 12.8 to 12.2v. Lower voltage likely equates to longer heating times to 101F but less overall AH and WH consumed.
Dial a wattage, 12v heating pad - Cheap RV Living
My son and I are getting ready to purchase a baby corn snake (we are novices). I have a 20 gallon “critter cage”, 2 hides (one at each end of the cage), aspen shavings as a substrate, a water dish, an artificial climbing tree, an under the tank heating pad labelled for a 10 to 20 gallon sized tank, and a 5.5″ Exo Terra Glow Light with a Repti Glo 2.0 Compact 26 watt bulb. I was concerned about the possibility of causing burns to the snake if it should burrow to the bottom of the glass tank, directly over the heating pad. I checked the temperature with about a 1/4″ layer of shavings over the heat pad (91 degrees F). On top of the shavings (approx. 2″) the temperature got up to 79-80 degrees F. My plan for the light source was more for the effect of having a more distinct day and night cycle in its habitat, and not as much as a heat source. Does this setup sound adequate?
Guide to Heated Cat Beds - Cats - LoveToKnow
If the waterbed heater doesn’t work and you have drained the only to find a burn mark or serious brown or black discoloration in the heating pad this is a very serious problem, remove it immediately and throw it away and buy a new one. Although this is a very rare occurrence this is the most serious of waterbed heater failures and should not be taken lightly. For your safety all waterbed heaters are sealed units and are not designed to be worked on and are called throw away items for a reason. All waterbed heaters are required to have a built in safety limit switch that is designed to act like a circuit breaker and shut the units off in case of emergency and typically do not reset. Water bed heaters built today have lower wattage outputs, which make them a lot safer than units made 10-15 years ago which operated at higher temperatures due to more wattage output. One last thing about lower output heaters, they can take up to a week to reach operating temperature, especially if you have filled the bed with cold water and or live in a colder climate.
Reptile Heat Lamps, Heating Pads & Reptile Incubators | Petco