Top 10 Best Battery Operated Fish Tank Heater

Preset to 78 degree, accurate to plus- 1 degree. No adjustment required. Shatter resistant. Fully submersible, auto shut-off when overheats, resets when cools down. LED light turns on when aquarium water is being heated. Ideal for aquariums up to 30 gallons.

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..

USB Rechargeable Two Model Rechargeable battery aquarium air pump, normal mode provides 12-15hrs working time and the intermittent mode can work continuously for 17-20 hours. This kind of rechargeable function frees you from replacing the battery, you can charge it with a laptop, a wall charger, or a power bank, saving you money and eco-friendly. You can take it for outdoor fishing, fish transportation and power outages. Powerful Motor Safety Small bait aerator, but equipped with powerful power can generate a large amount of aeration, Max Flow Rate 2.5Lmin2. Put out a ton of air bubbles via 2 air outlets and provide a sufficient amount of water circulation in your aquarium. With a rated power of 4W, this air pump is energy-efficient and wont get overheat when running. With 2 check valves to keep water from back flowing into your pump, much safer.. Wide Compatibility This quiet air pump is perfect for both Freshwater and Marine Aquariums, great to be used for all types of tanks with a capacity of 19-113L5-30gal. Excellent emergency aquarium oxygen pump. Automatic Switching OF ACDC Modes The pump works with both AC and DC power supplies. It can be used as a standard air pump with the AC power plugged in all the time, while when there is a power cut, it will switch to lithium battery DC power supply mode.. Ultra Whisper Quiet Minimum 35dB sound like rusting leaves, ticking watch in lowest flow rate. It wont disturb your sleep during it running. Accessories Include 2 x Check Valves, 4 x Air Stone, 2 x Air Tubing, 1x USB Power Cord..

PREMIUM SHATTERPROOF GLASSMade of shatterproof glass and BPA-free plastic.Bnzaq aquarium heaters are fully submersible and safe for fish without any toxic substance producing.3 FREE artificial aquarium plants as ornament in your tank.. NO LONGER CHILL YOUR FISHAutomatically regulate and maintain water temperatureimitate the original ecological environment for your tropical fish.Provided fish with warm water environment.Perfect to apply to fresh and salt water.. ADJUSTABLE TEMPERATURETemperature range 68F93F.25W heatersuitable for fish tank within 7 gallons,Length7.8.Easy to adjust temperature by the aquarium heater that suit more species of fish.. AUTOMATIC CONSTANT TEMPERATUREWhen water temperature reaches set value,the indicator light will be OFF and the heater will automatically stop heating.The heater will automatically start heating and indicator light will be ON if water temperature is low.You could place heater horizontally or vertically.. ATTENTIONPlease place the heater near place filter or pump of water flowing to keep more even water temperature.Unplug the heater 30 minutes early when changing the water for the fish tank..

Fully submersible. Vertical or horizontal placement using suction cups that mount to the bottom or side wall of tank. Quick and easy installation. Shatterproof construction. Can be used with glass or acrylic enclosures. Note Do NOT operate or leave product plugged in when it is outside of water. Warms aquarium water up to 6F above ambient room temperature. 7.5 Watt works best for 1 to 3 gallon fish tanks.

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..

8-watt submersible fish tank heater for aquariums up to 1.5 gallons 5 L. Creates ideal conditions for bettas to live in. Made of durable polymer, which is tougher than glass. Easy to install in your betta fish tank use the suction cups to place on the side of the betta tank. Automatically reaches set temperature allowing you to easily maintain your fish aquarium. Use in combination with the Marina Standing Thermometer sold separately for accurate temperature readings.

Temperature range 59F94F, display Fahrenheit F, this heater is designed for110 gallons tank. Upgrade function The heater will auto shut off when it is out of water and turn normal when fully in water again.. Automatic constant temperature function, when water temperature reaches to specified temperature value, heater will automatically stop heating, when water temperature is lower than the set temperature, heater will automatically start heating.. Touch button, cyclic adjust temperature , easy to use and Safety.. Notethis heater is 100 submersible use only, during its heating time, heater must be 100 submerged into the water.. SATISFACTION GUARANTEEDGain the confidence to go hard with us Our Aquarium Heater is built with durability in mind and safety for every design, In the remote possibility that youre not satisfied with our product, just contact us, and we will gladly give you a new Aquarium Heater replacement. 12 Month Warranty and 24 Hour Professional After-sales Service..

Electronic thermostat from 68F up to 94F, accurate to 0.5F. AUTO SHUT-OFF circuitry prevents overheating.. SHATTERPROOF outer casing make the NEO-THERM PRO heaters virtually indestructible.. LED DISPLAY for both Set Tamp and Tank Temp, simultaneously.. FULLY Submersible heater.

25 Watt Heater This Aquarium heater is suitable for 1 to 5 gallons aquariums, Length - 6.8 inch,voltage 110-120V, power cord is 4.0 ft, please choose the right wattage aquarium heater according to our size chart.. Temperature range 63F95F , It is very easy to adjust the temperature you need, we also deliberately give each customer a free diving thermometer, you can observe the water temperature of the fish tank at any time.. Intelligent temperature control Automatic constant temperature function, when water temperature reaches to specified temperature value, heater will automatically stop heating, when water temperature is lower than the set temperature, heater will automatically start heating. Furthermore, Automatic safety shut-off feature, and overheating protection.. Note 1. Aquarium heater is 100 submersible use only, during its heating time, heater must be 100 submerged into the water.,Please unplug the power supply when cleaning the fish tank or aquarium water changes. 2. Heater rod is suitable for people over 16 years of age. Children or minors should be under adult guidance or supervision.. SATISFACTION GUARANTEED Gain the confidence to go hard with us Our Aquarium Heater is built with durability in mind and safety for every design, In the remote possibility that youre not satisfied with our product, just contact us, and we will gladly give you a new Aquarium Heater replacement. 12 Month Warranty and 24 Hour Professional After-sales Service..