Top 8 Best Battery Powered Aquarium Heater

All Tetra HT heaters have indicator lights to let you know when the heater is on. It will be red when heating and green when the proper temperature has been reached.. The HT10 uses a built in electronic theromstat to automatically maintain water at 78 F which is ideal for most tropical fish. No adjustment is requried.. Ideal for aquariums between 2 to 10 gallons with hoods or glass canopies. The HT heater is fully submersbile and can be installed vertically or horizontally. It's small footprint makes it easy to conceal behind plants or other dcor.. Please read all label information upon delivery. DO NOT plug heater into an electrical outlet until it is placed inside the aquarium..

SUPER MINI SIZE This small aquarium heater is thumb size - only 1.97 5cm in length. Great for nano tanks betta tanks. The innovative super mini size perfectly solves the headache of the fish keepers on the traditional heaters Takes up less space, easy to hide, but in full power Temperature range is 64-93F, for up to 1 Gallon tanks.. SAFE VOLTAGE 5V2A USB POWER SUPPLY This 5V2A USB power supply is very safe. You are TOTALLY away from the worry of electric shock to your beloved fish Use a 5V2A power adapter, or a 5V2A power bank to supply power to the heater. Power adapter or power bank is not included. ACCURATE TEMPERATURE Thanks to the intelligent inverter technology, with the in-built chips this thermostat keeps the heater at a constant temperature at an accuracy of 1F, much more accurate than the traditional knob-controlled heaters. The thermostat shows 2 readings the current temperature and the set temperature very easy to operate.. OVERHEATING PROTECTION Full consideration of safety. This fish tank heater will stop working when the water temperature exceeds 97F. You are free from cooking fish MEMORY FUNCTION The last setting is stored in the thermostat. In case of a power cut, when the power recovers the heater will follow the last setting.. MULTIPLE USES This heater can be used for both fresh and marine water. It can be not only used as an aquarium heater, but can also work for turtles, pet fountains, and plant seedling..

Intelligent Temperature Control When the Water Temperature Is Lower Than the Set Temperature, the Fish Heater Will Automatically Start Heating Until the Water Temperature Reaches the Set Temperature When the Water Temperature Reaches the Specified Temperature Value, the Heater Will Heating Stops Automatically.. During Heating, the Heater Must Be 99.99 Submerged in Water. For Your Safety, Please Unplug the Power Change When Cleaning the Tank Or Aquarium.. IP68 Waterproof, Applicable to Water Body 0.5-2L, the Water Level Can Be as Low as 1CM, and the Water Temperature Can Be Increased By 6-8suitable For Fresh Water and Sea Water.. Nickel Ironing Heating Wire, Fast Heating Speed, High Efficiency, Step Heating, Automatic Constant Temperature At 28 C.. SHOP WITH CONFIDENCE To Provide You With the Highest Quality Service, If You Have Any Question, Please Feel Free to Contact Us.We Will Provide After-sales Service Until You Are Satisfied..

The Slim heater will increase the water temperature of mini aquariums up to 10 gallons by a few degrees compared to the ambient room temperature. The Slim heater can be used in glass, acrylic, plastic fish bowls and aquariums. Safe to use under gravel. Please note, Slim heaters are not suitable to be used in environments without water. Extra small slim fish tank heater 150 is a great choice for Betta fish and for fish tanks 5 to 10 gallons, measures 6.1L x 3.2 inches, 15 watt Plug and Play universal fish tank heater No temperature to set slim heater provides warmth for betta fish without taking up much room. Heater can easily be placed submerged in water or even under the tank gravel The 90 degree angle makes this great for Betta acquariums Safe to use in glass, plastic and acrylic fish tanks. Plug play universal fish tank heater, the slim fish tank heater can be used in both fresh or saltwater environments. Easy to hide fish tank heater is ideal to use for betta fish, gold fish and glow fish.

Super Mini Size, 10Watt, below 1 GallonYukiHalu 10W aquarium heater is designed for the mini fish tanks less than 1 gallon. Compact design, take less space in the fish tank, easy to hide in the tank. Temperature can be accurately adjusted from 64 to 93F. The rated voltage DC 5V2A. Important tips insufficient power of the adapter will cause no heating and the number will flash or the controller restarts repeatedly, make sure the power adapter is 5V 2A and has enough power.. Automatic Constant Temperature with 1 AccuracyThanks to advanced Intelligent Frequency Conversion Technology, the water temperature can be kept constant with an accuracy of 1. The heater's working frequency will be changed according to temperature variation, and the heating is automatically stopped when the set temperature is reached. Compare to traditional heater, this new technology will cut down 49 electricity bill for you.. Overheating Protection DC 5V USB supplyThe power will be cut off and stop heating automatically if the heater overheating. Protect your fish. Never cook your fish. USB 5V power supply, prevent electric shock. 30days full refund, 12-months warranty.. External Temperature Controller, Never Wet Your HandsUse an external controller to set the temperature instead of immersing your hands in water to rotate the dial. Never wet your hands or contaminating your tank. Easy to install.. Built-in Temperature sensor, Power-off Memory FunctionDual built-in temperature sensor, the water temperature will be displayed on the external temperature controller in real time. No need to buy other temperature meters. The heater will remember the temperature setting, no need to reset the temperature after power off..

Preset temperature has been set to 77F, appropriate for most tropical fish, shrimp and aquatic plants requiring stable conditions. With accuracy of 2F and overheat protection, protect your tank from extreme temperature. LED indicator light will turn to red when the heater is actively heating. With compact design and built-in suction cups, the heater can be easily placed vertically or horizontally in aquariums completely. This 15-watt submersible heater works for small aquariums, up to 2.5 gallon, to provide the ideal water temperature.

Super Mini Size, 50Watt for 3-10 Gallons YukiHalu 50W aquarium heater is designed for 3-10 gallons mini fish tank. Compact design, take less space in the fish tank, easy to hide in the tank. Temperature can be accurately adjusted from 64 to 93F. This heater suitable for both saltwater and freshwater. The rated voltage is 100-130V.. Automatic Constant Temperature with 1AccuracyThanks to advanced Intelligent Frequency Conversion Technology, the water temperature can be kept constant with an accuracy of 1. The heater's working frequency will be changed according to temperature variation, and the heating is automatically stopped when the set temperature is reached. Compare to traditional heater, this new technology will cut down 49 electricity bill for you.. Overheating Protection, Out of Water ProtectionThe power will be cut off and stop heating automatically if the heater out of water or overheating. Protect your fish. Never cook your fish. 30days full refund, 12-months warranty.. External Temperature Controller, Never Wet Your HandsUse an external controller to set the temperature instead of immersing your hands in water to rotate the dial. Never wet your hands or contaminating your tank. Strong suction cups, easy to install.. Built-in Temperature Sensor, Power-off Memory FunctionDual built-in temperature sensor, the water temperature will be displayed on the external temperature controller in real time. No need to buy other aquarium temperature meter. The heater will remember the temperature setting, no need to reset the temperature after power off..

SMALL AND POWERFUL This mini aquarium heater is about 2 long, and is super small. It is specially designed for small fish tanks and does not occupy any space. Upgrade the chip to make the temperature sensing more sensitive and the temperature rise more accurate.. INTELLIGENT MEMORY FUNCTION After setting the target temperature, the power is suddenly turned off, and the target temperature remains unchanged after turning on the power again.. OVERHEATING PROTECTION Built-in temperature sensor, temperature range 64-93F. If the water temperature exceeds 95F, the error code HI appears, the heater stops working, and when it returns to below 95F, the error code disappears and it starts working again.. EXTERNAL CONTROLLER External temperature controller, no need to get your hands wet, no need to buy other controllers, 52 inch long power cord, easy to install, easy to control.. WIDELY USED Suitable for freshwater and saltwater. Meet the growth temperature for turtle, Fighting fish,Guppy, Goldfish, Neon Tetra, Gourami, Peaceful Betta, Pterophyllum, Dwarf Gourami, Pterophyllum Scalare, Betta Smaragdina, Koi, Corydoras, Anabantoidei, Paradise Fish, Clownfish,swordtail....