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5 Best Battery Backup for Tankless Water Heater [Top Pick]

Battery Backup for Tankless Water Heater

During the power outage or camping, you need a battery backup for tankless water heater. A backup battery not only supports your tankless water heater but also protects your household electric devices during over-voltage, short circuit, overcurrent.

For non-stop hot water during electricity outages, overall HUGO is the best battery backup for tankless water heater. You can also use Jackery Explorer 500, BLUETTI EB70S 800W, Milin 622Wh, EF ECOFLOW DELTA. These also provide service with amazing features.

The Top 5 Best Battery Backup for Tankless Water Heater Review

1. HUGO Battery Backup for Tankless Water Heaters and Gas Appliances Review

Top Pick
HUGO Battery Backup for Tankless Water Heaters and Gas Appliances Review
5

Key features: Easy installation, Intelligent features, Maintenance-free, Replaceable battery, and Auto-activate.
Specification
Weather protection: Yes
Installation: Indoor/outdoor
Run time: Up to 7 days (depends on consumptions)
Power source: AC & Battery
Dimensions: 14 x 12 x 9 inches
Weight: 45lbs
Wattage  350 watts
Output: 500 VA
Warranty: 1 year
Solar capable: Yes

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HUGO is the best battery backup for tankless water heaters because it is designed for especially tankless water heaters and gas appliances.

The rechargeable battery can backup up to 7 days ( it depends on consumption) and 5-13 hours of continuous operation.

It has grid power surge protection that saves the expensive device from being damaged by eliminating the electricity spike.

The device is portable, if you want you can mount it permanently. It is durable and easy to install. Only one minute need to install it. The battery is replaceable and it is also easy to replace.

Pros

  • 5-13 hours of continuous operation.
  • Flow sensor switch ensure prolong battery life.
  • Easily replace battery when needed.
  • Pure sine wave output.
  • Save expensive electric devices.

Cons

  • Flow sensor not for US market.

2. Jackery Portable Power Station Explorer 500, 518Wh Review

Editor’s Choice
4.5

Key features: Designed for portability, four ways to recharge, large capacity,
Specification
Weather resistance: Yes
Installation: Portable
Power source: ‎AC, Car Port, Solar Panel.
Dimensions: 11.84 x 7.59 x 9.2 inches
Weight: 13.32lbs
Wattage: 500 watts
Warranty: 2 years
Solar capable: Yes

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The Jackery Explorer 500 is designed as a portable power station. It can handle a basketball ground. It has a solid handle so it is easy to carry. For RV, road trips, fishing or camping it is a perfect device as a power station.

For RV, you can set it for a tankless water heater and if your backup battery has less power then you can recharge it by solar panel. So you don’t need to tense for your hot water.

Recharging the battery by solar panel, the recharge time can vary with location, temperature, and weather.

Four ways you can recharge the backup battery by solar panel, wall socket, vehicle’s 12V output, and electric generator.

To extend battery life, you have to take care of it, just keep away from direct sunlight and heat. And also you need to recharge the battery after 6 months if you don’t use it.

You can use ups for tankless water heater. You can use the Jackery Explorer 500 as ups for computer as ups.

Pros

  • Overvoltage protection.
  • Fours ways to recharge.
  • Short circuit protection.
  • Lightweight and longer life cycles

Cons

  • In storage, need to recharge every 6 months.

3. BLUETTI Portable Power Station EB70S 800W Review

Best Overall
Battery Backup for Tankless Water Heater
4.5

Key features: Get recharged everywhere, 4 Ways of Fast Recharging, 12 outputs.
Specification
Weather resistance: Yes
Installation: Portable.
Power source: Generator, wall outlet, solar panel & Car.
Dimensions: 12.6 x 8.5 x 8.7 inches
Weight: ‎21.4 pounds
Wattage: 800 watts
Warranty: 2 years.
Solar capable: Yes

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BLUETTI EB70S 800W is a portable power station, if you want you can use it indoors too. If you want to use it indoors then you can install it on table or underneath the table. Because its handles are foldable and the whole device is compact. So it needs less space and easily fits in any small place. The dimensions are 12.6 x 8.5 x 8.7 inches.

If your area outage of electricity, you can use it as a power station for your tankless water heater. Along you can charge or run less electricity consuming devices. During outage time, you don’t need to tense to recharge the battery. Because it has four-way recharging ways. Among them, by the solar system, you can recharge your backup battery.

It has built-in BMS protection that saves the devices from over-voltage, over-current, overheating, short circuit, and so on.

Pros

  • Compact design.
  • Four recharging ways.
  • Save your expensive device from being damaged.
  • 2500+ Full Life Cycles.

Cons

  • Designed For Devices Under 800W.

4. Backup Lithium Battery for Outdoor Use Camping RV

Best Rv
Portable Power Station 622Wh 600W Solar Power Generator
4.9

Key features: Off-grid solar charging, Pure sine wave inverter, Efficient heat dissipation, LCD screen.
Specification
Weather resistance: Yes
Installation: Portable
Power source: wall outlet, generator, USB C & solar.
Dimensions: 11.4 x 8.2 x 8 inches
Weight: 14.99 pounds
Wattage: 600 watts
Solar capable: Yes

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Milin 622Wh is the best battery backup for tankless water heater as an excellent Battery Management System (BMS). This portable power station can recharge in 4 ways, among them the solar system is available.

If you want you can use it as your whole house power station during an electricity outage. With the backup battery, you can recharge 9 devices at a time. It has five different out ports, they are 1 car port, 1 PD, 2 AC, 2 DC, and 3 USB connections.

It has a fast-charging system. To reach 0% – 80% it takes only 2.5 hours.

Pros

  • At a time recharge 9 devices.
  • 5 different ports.
  • Small size big power.
  • Lightweight.
  • Fast charging.

Cons

  • Sine wave not pure enough.

5. Solar Battery Generator for Outdoor Camping RV

Best Capacity
Solar Battery Generator for Outdoor Camping RV
4.8

Key features: Superfast charging, Triple rechargeable mode, High capacity,
Specification
Weather resistance: Yes
Installation: Portable
Recharge time: 1.6 Hours (AC)
Power source: Wall outlet, Car & Solar panel
Dimensions: 15.7 x 8.3 x 10.6 inches
Weight: 30.9lbs
Wattage: 3300 watts
Warranty: 2 years.
Solar capable: Yes

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EcoFlow DELTA Portable Power Station 6 1800W has a triple charging method. By AC charging system you can recharge the backup battery 80% within 1 hour and for 100% it takes only 1.5 hours that is very less time compare to other power stations.

You can run a hairdryer, air conditioner, coffee machine, grill machine, etc. with this power station. But most of the power stations aren’t capable to support those devices mentioned above.

It has a LED display where you can see everything about the device and how much power remains or how much recharge.

It’s Battery Management System is excellent and also it has some amazing protection feature that saves your household devices. For example, Overload Protection, Over Voltage Protection, Short Circuit Protection, Over Temperature Protection, Low Voltage Protection, Low-Temperature Protection, Overcurrent Protection.

Pros

  • Need only 1 hour to reach 0% to 80%.
  • At a time can recharge 13 devices.
  • Need only 1 time charge per year in storage.
  • The backup battery capacity is huge.
  • You can use a hairdryer, coffee machine.

Cons

  • It is expensive but worth it.

How we select these products

During the winter season water heater is very important and at that time if the power got to cut then the user needs to keep running the water heater. But the water heater isn’t a small electronic device so it needs a huge power supply. For this, we select the high-capacity backup battery of the well-known manufacturer and also we select some portable batteries. For this, we do a survey on backup battery and we notice that most user uses what we mentioned above.

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