Top 5 Best Group U1 Batteries (Detailed Review)

Group U1 batteries are well-reputed BCI group size products. Generally speaking these batteries will range between 31 amp hour (Ah) and 42Ah, 200 cold cranking amps (CCA) and 430 CCA and 30 reserve capacity (RC) and 50 RC. The weight of the Group U1 batteries ranges between 20 to 30 Pounds. It depends on whether it is a thick plate deep cycle or thin plate stop/start battery or a dual purpose combination.

Best Group U1 Batteries: Our Top 5 Picks

The Group U1 batteries are available in the market by different brands. It can be a quite laborious and time-consuming job for you to compare and decide what is the best brand and style for your application.

Here, we have reviewed the Top 5 Best Group U1 Batteries in 2021— carefully selected by our research team based on the

  • Performance
  • Technology
  • Cold-cranking amps (CCA)
  • Durability
  • Brand trust and
  • Buyer reviews
Product List Buy From
VMAXTANKS VMAX V35-857 12 Volt 35AH AGM Battery (12V 35AH, GROUP U1)
Amazon
ML35-12 – 12 Volt 35 AH SLA Battery- Mighty Max Battery Brand Product
Amazon
12V 32Ah Gel Cell Scooter Battery Pride Mobility Group U1
Amazon
Universal Power Group UB12350 12V 35AH SLA Internal Thread Battery
Amazon
Chrome Battery 12V 35AH Lead Acid Battery
Amazon

VMAXTANKS VMAX V35-857 12 Volt 35AH AGM Battery (12V 35AH, GROUP U1)

Best Group U1 Batteries

Product Features:

  • AGM design
  • Weight: 25 pounds
  • Dimensions: 7.7 x 6.1 x 5 inches
  • CCA: 300 Amp
  • RC: 75 minutes
  • Capacity: 35Ah
  • Voltage: 12 volts

Our Review:

The VMAXTANKS V35-857 is a deep cycle battery tailor-made for applications like sport kayaks and small boats, and as it weighs only 25 pounds, light enough to carry without troubling you.

The VMAXTANKS V35-857 has a unique physical and chemical structure of its plates. The special treatment and manufacturing process from which the VMAXTANKS undergo gains them unique reliability, strength and high performance far exceeding those of other similar looking products.

The Absorbed Glass Mat (AGM) design of this Group U1 battery makes it completely spill-proof, resistant to shocks and vibrations. You can expose it to vibrations without damaging its cells or experiencing a sharp decline in performance.

Since the electrolyte is totally absorbed by the AGM, the VMAX is classified as “non-spillable and non-hazardous.

It also comes with safety release valves with automatic reseal feature to prevent the accumulation of harmful gases while the ultra-strong ABS containers protect the tightly packed plates, delivering the V35-857 in a 100 percent maintenance-free package.

There is no need to check specific gravity of the electrolyte or add water to VMAX tanks during float service life. In fact, there is no provision for this type of maintenance.

A weather-proof product, and so you should have no problem operating it even in the harshest weather conditions.

With a rating of 35Ah, this Chrome battery can run for up to 75 minutes on reserve capacity and you can expect to get 4-6 hours service from it on a single charge.

One thing you should be aware of- it needs a specific charger as using a generic charger will damage the battery quickly. However, on the bright side, it can withstand frequent charging and discharging to deliver a longer life span.

Pros
  • Lightweight, easy-to-move battery
  • Charges faster
  • Longer life span
  • Can be charged with as little as 3A
Cons
  • Price a little higher than the regular battery
  • Needs a special charger to charge properly

L35-12 – 12 Volt 35 AH SLA Battery- Mighty Max Battery Brand Product

Best Group U1 Batteries

Product Features:

  • AGM design
  • Weight: 23 pounds
  • Dimensions: 7.5 x 7.75 x 5 inches
  • Capacity: 35Ah
  • Voltage: 12 volts

Our Review:

The Mighty Max ML35-12 is a highly dependable SLA / AGM spill proof battery with the characteristics of high discharge rate, wide operating temperatures, long service life and deep discharge recovery.

Weighing just 23 pounds and having a loop handle installed makes it easy to move around the battery. With a measurement of 7.68 x 5.16 x 7.13 inches, this Group U1 battery is small and portable. Being a small battery you don’t dare to underestimate its performance: the ML35-12 has sufficient power capacity for various tools and electronic devices.

The absorbed glass mat (AGM) technology of the Mighty Max ML35-12 battery ensures excellent performance with little need for maintenance and that the battery can work well in unfavorable conditions. Furthermore the electrolytes are spread over the absorbent fiberglass to prevent leakage.

Because of the valve-regulated design – there’s nominal risk of overheating since the gases can safely discharge. The ML35-12 features a heavy-duty calcium-alloy grid, making it possible for it to withstand vibration and shocks. The durable housing of the battery makes it less prone to corrosion.

The battery can excellently perform in areas having wide ranging temperatures. You can even mount it in any position (not upside down, of course); without compromising on its performance.

Having thicker plates used in the Mighty Max ML35-12 battery-that allow for deeper discharge than other batteries without worrying about running out of power too soon. The battery has a slower discharge rate than regular batteries when not used.

You can use the battery for a wide range of applications including boat motors, solar, cranking battery, golf carts, electric vehicles, etc.

To prevent battery damage, avoid charging it with too strong currents. Also, the battery charges really fast and you can charge it fully in no time.

Last but not the least, this Group U1 battery comes with a 1-year warranty combined with an excellent price, it certainly worth your consideration.

Pros
  • High discharge rate
  • Non-spill design
  • Wide operating temperatures
  • Long service life
  • Deep discharge recover
  • Can be mounted in any position
  • Resists shocks and vibration
Cons
  • Not suitable for large applications
  • Doesn’t hold charge for too long

2V 32Ah Gel Cell Scooter Battery Pride Mobility Group U1

Best Group U1 Batteries

Product Features:

  • Weight: 25 pounds
  • Dimensions: 7.71 x 5.20 x 7.15 inches
  • Capacity: 32Ah
  • Voltage: 12 volts
  • Warranty: 1 year

Our Review:

The 12V 32Ah Gel Cell Scooter is a user-friendly deep cycle battery that can be used as a UPS backup battery, telecom, mobility scooter battery, and a host of other applications.

Because of the use of silica gel during the construction of this Group U1 battery, the acid turns into a solid mass that makes the battery spill-proof. Moreover, you can place this battery into service on its side!

Please do not confuse this sealed Gel battery with its superior cousin, the sealed AGM battery. Despite what the competition may suggest, these batteries are not the same. They have different charge profiles meaning if your charger is designed for an AGM battery it will over charge this Gel battery or if your charger is set for Gel and you use an AGM battery it will be perpetually under charged.

Also, new gel batteries require a break-in period of about 2-3 weeks before they start functioning at full capacity, so be sure to use and recharge it until the period elapses.

Above-all the 12V 32Ah Gel Cell Scooter Battery Pride Mobility Group U1 comes with a 1-year warranty.

Pros
  • Spill-proof battery
  • Resists shocks and vibration
  • Maintenance-free
Cons
  • Different from AGM batteries

Universal Power Group UB12350 12V 35AH SLA Internal Thread Batter

Best Group U1 Batteries

Product Features:

  • AGM design
  • Weight: 23.20 pounds
  • Dimensions: 7.70 x 5.12 x 6.26 inches
  • Capacity: 35Ah
  • Voltage: 12 volts
  • Warranty: 1 year

Our Review:

The UB12350 is another incredible Group U1 battery that can serve a wide variety of purposes including watercraft, backup systems, security, emergency lighting, solar, engine starters, golf carts and more.

Moreover the AGM design makes it possible for the battery to operate in virtually any position as well as in any environment, including in close proximity to people and sensitive equipment. The microfibers separators installed inside the battery act as sponges by completely absorbing the electrolytes, thus the UB12350 doesn’t release harmful gases since the fumes are processed inside.

The UB12350 is valve-regulated, so you won’t need to add water during the life of the battery as the content cannot be spilled. Besides, the construction of the battery resists vibrations and shocks- and you don’t have to worry about cleaning the terminals every now and then.

It is advised to charge the UB12350 every four to six weeks to keep the cells topped up and active, especially the colder months. The good news is that you can charge the battery with just about any charger.

The battery comes with a 1-year warranty. On a whole, the UB12350 offers outstanding performance at a fair price. It is an easy to install Group U1 battery.

Pros
  • Lightweight
  • Affordable price
  • Leak-proof and spill-proof
  • Maintains charge for longer time
Cons
  • These are replacement batteries alone, so you have to use your existing wires and cables

Chrome Battery 12V 35AH Lead Acid Battery

Best Group U1 Batteries

Product Features:

  • AGM design
  • Weight: 22 pounds
  • Dimensions: 7.68 x 5.12 x 6.46 inches
  • Capacity: 35Ah
  • Voltage: 12 volts
  • Warranty: 18 months

Our Review:

The Chrome Battery 12V 35AH is a heavy-duty, deep cycle, sealed lead-acid battery which can be used for a wide range of applications like lawn tractors, mobile scooters, household alarm systems, etc. It can supply high amounts of power to your application while being perfectly stable.

This Group U1 battery is constructed with lead calcium alloy and absorbed glass mat technology, which allows for maintenance-free operation. The fiberglass mat separators and high cell compression extends the battery life by delivering superior vibration resistance even in the most extreme conditions. Furthermore the Chrome Battery 12V 35AH can be mounted in any position, thanks to the special design.

The ABS plastic case of the battery enables it to withstand shocks and vibrations and serve you longer than its counterparts.

This Chrome Battery comes fully charged and ready to go once delivered, simply connect your battery to the application and you are ready to go. Being a rechargeable battery, you can charge it multiple times.

Read Our Guide On : Top 5 Best Golf Cart Batteries in 2021

You can expect this battery to work perfectly fine for at least 3 years. Furthermore the manufacturer offers a 60-day no questions asked money-back guarantee along with an 18-month warranty.

Chrome Battery 12V 35AH is a reliable product of the Group U1 batteries, it delivers great performance at a very affordable price.

Note: Avoid overcharging of the battery to attain the maximum results.

Pros
  • Works in multiple applications
  • Resists shock and vibration
  • Supplied with full charge
Cons
  • Slow charging

Conclusion:

Group U1 batteries are general purpose batteries often used in medical and security applications, in wheelchairs, electric scooters, golf carts, lawnmowers, and other garden tools, camping, etc. Group U1 batteries offer higher capacity, a larger number of charging/discharging cycles, and lower weight. They are a little higher in price as compared with competitors in the market but you can always spend some extra money to buy a bankable product.

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