9 Best Generator Batteries for 2020

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best generator battery

Power supply is mandatory in our daily life for operating our daily work at home and outside. If you have no power supply facility at the time of your need, you must need an alternate option called generator.

To operate a battery-powered generator, you need a perfect battery for providing energy. There are many options for a generator battery, so it is difficult to choose the right one. You need to check your generator’s adaptability then you should match all the specifications with the battery before purchasing it.

To make your work easier, we are here to help you with some top branded generator battery details. If you go through with this article, you will get all the answers to your dilemma and choose the right generator battery according to your generator capacity.
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Overall Best
Mighty Max Battery ML18-12 - 12V 18AH Rechargeable Battery for Champion Generator 9000 7000 Brand Product
12V 15Ah Champion Generator 9000 7000 Rechargeable Battery
Replacement for 2011 Honda EU3000 Factory Activated, Maintenance Free, Tractor/Generator Battery - 12V, 8Ah, UB-YTX9-BS
Universal Power Group 12V 18AH SLA Battery for DR Field Tow-Behind and Brush Mower
YTX7L-BS Battery Replacement (6Ah, 12v, Sealed) Factory Activated, Maintenance Free Battery Compatible with - 2012 Honda...
Yuasa YTZ14S Battery
Product
Mighty Max Battery ML18-12 - 12V 18AH Rechargeable Battery for Champion Generator 9000 7000 Brand Product
12V 15Ah Champion Generator 9000 7000 Rechargeable Battery
Replacement for 2011 Honda EU3000 Factory Activated, Maintenance Free, Tractor/Generator Battery - 12V, 8Ah, UB-YTX9-BS
Universal Power Group 12V 18AH SLA Battery for DR Field Tow-Behind and Brush Mower
YTX7L-BS Battery Replacement (6Ah, 12v, Sealed) Factory Activated, Maintenance Free Battery Compatible with - 2012 Honda...
Yuasa YTZ14S Battery
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Overall Best
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Mighty Max Battery ML18-12 - 12V 18AH Rechargeable Battery for Champion Generator 9000 7000 Brand Product
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Mighty Max Battery ML18-12 - 12V 18AH Rechargeable Battery for Champion Generator 9000 7000 Brand Product
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12V 15Ah Champion Generator 9000 7000 Rechargeable Battery
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12V 15Ah Champion Generator 9000 7000 Rechargeable Battery
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Replacement for 2011 Honda EU3000 Factory Activated, Maintenance Free, Tractor/Generator Battery - 12V, 8Ah, UB-YTX9-BS
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Replacement for 2011 Honda EU3000 Factory Activated, Maintenance Free, Tractor/Generator Battery - 12V, 8Ah, UB-YTX9-BS
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Universal Power Group 12V 18AH SLA Battery for DR Field Tow-Behind and Brush Mower
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Universal Power Group 12V 18AH SLA Battery for DR Field Tow-Behind and Brush Mower
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YTX7L-BS Battery Replacement (6Ah, 12v, Sealed) Factory Activated, Maintenance Free Battery Compatible with - 2012 Honda...
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YTX7L-BS Battery Replacement (6Ah, 12v, Sealed) Factory Activated, Maintenance Free Battery Compatible with - 2012 Honda...
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Yuasa YTZ14S Battery
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Yuasa YTZ14S Battery
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View Top 9 Generator Batteries Reviews, Below

1. ML18-12 - 12V 18AH Rechargeable Battery by Mighty Max

ML18-12 - 12V 18AH Rechargeable Battery by Mighty Max
  • Volts- 12 volt;
  • Amp- 18 ah;
  • Terminal- Nut and bolt ;
  • Weight- 11.90 lbs.

Sophisticated, heavy-duty calcium-mixed grids deliver ML18-12 with exceptional strength, performance and service life. The thicker plates of the ML 18-12 allow you to discharge deeper than other batteries, which means you can have more fun and power without worrying about charging.

It is designed with sealed lead acid and absorbed glass mat technology. This battery is rechargeable and a maintenance free battery. Agm is more secure in the light of no free electrolyte; agm batteries eliminate the risk of spills with lead-acid batteries and bring an increased level of well-being for the user.

Pros-

  • Reasonable price;
  • Long service life;
  • Prevents shocks and vibration;
  • High performance.

Cons-

  • It produces smoke due to get hot.

2. Powerstar 12V 15Ah 9000 7000 Rechargeable Champion Generator Battery

Powerstar 12V 15Ah 9000 7000 Rechargeable Champion Generator Battery
  • Volts- 12v;
  • Sla battery;
  • Capacity- 15 ah.

Powerstar used advanced agm technology in this battery for more compatibility. This technology makes the charging system easier than others. It is a maintenance free rechargeable battery.

The sealed lead acid technology increases its lifespan. Because of the right dimensions it can fit easily in the battery slot of a champion generator, and it will start working great. The battery is so fast. Anyone can start the battery very quickly in the first try.

Pros-

  • High performance;
  • Provides nut and bolt terminal;
  • Longer life;
  • Easy charging.

Cons-

  • Price is high.

3. UB-YTX9-BS Replacement for 2011 Honda EU3000 Tractor/Generator Battery

UB-YTX9-BS Replacement for 2011 Honda EU3000 Generator Battery
  • Voltage is 12v;
  • Capacity is 8ah.

This generator battery is a replacement battery for 2011 honda eu3000. It is a factory activated sealed lead acid battery that is ready to install. You don’t need to add acid before using it. It features leak-free technology. It prevents corrosion from using the sealed design. 

It works well, but you need to be careful because its capacity is 8ah. It can die instantly due to the poor charge holding capacity.

Pros-

  • Reasonable price;
  • Prevents corrosion;
  • Leak free.

Cons-

  • It doesn’t hold charge for a long time.

4. Universal Power Group SLA Generator Battery

Universal Power Group SLA Generator Battery
  • Volts- 12V;
  • Capacity-18ah;
  • Weight- 11.40 Lbs.

This generator battery is made with sla/agm technology for more durability. It is a long-lasting battery. It is a spill free rechargeable battery that can be mounted in any position. It has shocks and vibration prevention features.

Pros

  • Prevents shock and vibration;
  • Spill proof;
  • Long lasting battery.

Cons

  • Price is a bit higher.

5. YTX7L-BS Battery Replacement (6Ah, 12v, Sealed) by Upstart Battery

YTX7L-BS Battery Replacement by Upstart Battery
  • Volts- 12v;
  • Capacity- 6ah;
  • Sla battery.

It is a factory activated battery. So, it is ready to install and doesn't need to add acid. Due to sla/agm technology, it is a maintenance free long-lasting battery.

This sealed lead acid battery is leak free, and its sealed design prevents corrosion. It is a good battery for light operation.

 Pros

  • Reasonable price;
  • Agm technology;
  • Leak free.

Cons

  • Not for heavy duty.

6. Yuasa YUAM72Z14 YTZ14S Generator Battery

Yuasa YUAM72Z14 YTZ14S Generator Battery
  • Volts is 12v;
  • Capacity is 11.2ah;
  • Factory activated.

This YUAM72Z14 YTZ14S battery comes with 12 Volt, 11.2 amp-hour, and 230 cold cranking amps. It is a high-performance giving sealed maintenance-free battery. This battery is totally sealed and spill-proof. All acid is absorbed in special plates and absorbed glass mat separators.

It is a factory activated battery that is ready to install, and you don’t ever need to add water. The advanced lead-calcium technology of this battery holds its specific gravity more than three times longer than conventional batteries

Pros

  • High performance;
  • Sealed designed;
  • Spill proof.

Cons

  • Price is high.

7. UB12180 SLA Internal Thread Replacement for Vision CP12180 by Universal Power Group

UB12180 SLA Internal Thread Replacement for Vision CP12180
  • Volts-12v;
  • Capacity- 18 ah;
  • Agm technology.

UB12180INT 12v 18ah generator battery is a sla/agm maintenance free spill proof battery. Absorbent glass mat technology is used for superior performance.

It is a rechargeable battery, and its valve regulated spill-proof design allows safe operation in any position.  It also prevents shocks and vibration due to its features.

Pros

  • High Performance;
  • Easy to use;
  • Long lasting.

Cons

  • Does not come with nuts to secure the wires.

8. Mighty Max- Battery Replaces CB19ty-12, ES1217, UB12200, LC-RD1217P

Mighty Max- Battery Replaces CB19ty-12
  • Volts- 12v;
  • Capacity- 22ah;
  • Terminal- Nut and bolt.

The mighty max ML22-12 12 Volt 22 ah battery uses state of the art, heavy-duty, calcium-alloy grid that provides exceptional performance and service life in both float and cyclic applications.

It is used absorbent glass mat technology with a valve regulated design, that can be used in enclosed and indoor environments without leaking or maintenance, providing a superior performance for thousands of models.

Pros

  • Nut and bolt terminal for safety;
  • Long service life;
  • Deep discharge recover;
  • High performance.

Cons

  • No wire harness or mounting accessories included.

9. ExpertPower- EXP12180 12V18AH Lead Acid Battery

ExpertPower- EXP12180 12V18AH Lead Acid Battery
  • Volts- 12v;
  • Capacity- 18 ah.

It is a sealed lead acid battery which comes with nuts and bolts for safety. Non-conductive abs plastic is used to make this high impact resistant battery case. This material strongly prevented shock, vibration, chemicals, and heat.

It utilizes absorbed glass mat (agm) technology and has a wide temperature range. It is user friendly, and the installation is very easy with very durable and rugged construction.

Pros

  • User friendly;
  • Easy installation;
  • Durable.

Cons

  • Charge longevity is poor.

How to Choose the Right Generator Battery

For the perfect power support, you need to choose the appropriate battery for your generator. So, you should choose your one considering some facts which are as follows-

Battery Capacity

Battery capacity is measured in amp-hours (ah), and it reflects the charge holding capacity. At first, you need to check the Ah of your desired battery to ensure your generator's better performance.

Size and Dimensions

When you have decided to buy a battery, you need to know the battery's exact size and dimension according to your generator. If it's not getting matched with your generator you aren't able to fit it in the battery slot.

Terminal Types

There are many batteries with a lot of terminal options. You need to identify the terminal type, which is for your generator.

Types of Battery

Battery has many types, such as lead-acid batteries, sealed batteries, AGM Batteries, etc. So, you should know the details about all the battery types and select the perfect battery type, which is the right fit for your generator.

FAQs

How Often Should I Charge My Generator Battery?

If it's not being used, the battery is supposed to be charged once a month using the charger.

When Should I Replace My Generator Battery?

You should replace your generator batteries every 36 months even if they are still working. If you replace them every 2 years to give you the most assurance that the generator is going to be ready to start and ready to perform when it's needed, especially in a power emergency.

How Long Should the Generator Battery Last?

A quality battery's common lifespan can be up to three years, but it depends on the maintenance and usage.

Why Would a Generator Battery Explode?

Always due to overcharging or excessive charging. While charging the battery, it produces gas. If small ventilation holes are blocked, there is more reason to explode.

Conclusion

Generator is a power supply tool which gives us support when we need emergency power anywhere. But it works through the power of the battery. So, the battery should be perfect for the desire power supply, and it is very important to choose the right one,

Here we include many similar batteries from different manufacturers. Hopefully, you have found here the options that range in price, quality, and value. Our goal was to help you understand what to look for and then offer a few initial advice types.

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