A lawnmower will make your work of maintaining your lawn much easier, but you also need to maintain your mower so it can function reliably for many years. You’ll need to replace the battery after 5 years and U1 batteries are the most commonly used in lawnmowers, but they come in different sizes and features that make each unique.
Comparison table
| Product | Battery voltage | Check on Amazon |
|---|---|---|
| Mighty Max ML-35 12V 35AH SLA battery | 12V 35 AH | Check price here |
| Chrome battery deep cycle replacement battery | 12V 35 AH | Check price here |
| Mighty Max ML-U1 | 12 V 200CCA | Check price here |
Best U1 Battery for Your Lawnmower. Review
Mighty Max ML-35 12V 35AH SLA battery
- Ml35-12 Sla Is A 12V 35Ah Sealed Lead Acid (Sla) Rechargeable Maintenance Free Battery
- Dimensions 7 68 Inches X 5 16 Inches X 7 13 Inches Listing Is For The Battery And Screws Only No Wire Harness Or Mounting Accessories Included
- Compatibility Deep Cycle Agm Solar Battery Replaces 33Ah 34Ah 36Ah Light Trolling Motor Sevylor Minn Kota Minn Kota Endura C2 Trolling Motor John Deere Tractor Riding Mower Yamaha Rhino Utility Vehicle Wilderness Tarpon 100 Kayak Trolling Motor Power Patrol Sla1155 Bat-Caddy X3R Golf Caddy Pride Mobility Jazzy Select Elite Power Chair Goal Zero Yeti 400 Solar Generator Doorking Power Inverter 1000 Sail 6-Gfm-33 Toro Time Cutter Ss5000 Mower Generac Od4575 Invacare Pronto M4
A rechargeable maintenance-free battery that can be mounted in multiple positions makes it versatile and compatible with other mower brands. It features a deep discharge recovery that allows the battery to bounce back after an over-discharge. This battery is completely sealed and spill-proof.
Pros
- Great for cold weather
- Fully sealed design
- Compatible with many mower brands
Cons
- A bit expensive
Chrome battery deep cycle replacement battery
This battery arrives fully charged and ready to go on delivery. It’s compatible with a range of mower models and can also be used to power other machines like an alarm system or mobile scooter. It’s built-in a sealed AGM design which makes it maintenance-free and with fiberglass mat technology to reduce the risk of leaks.
Pros
- Requires fewer charges than other batteries
- Arrives fully charged
- Versatile applications
Cons
- Charges slowly
Mighty Max ML-U1
- ML-U1 is a 12V 200 Cold Cranking Amps (CCA) Sealed Lead Acid (SLA) Battery
- Dimensions: 7.62 inches x 5.00 inches x 7.00 inches. Polarity: Positive on Left, Negative on Right. Listing is for the Battery and Screws only. No wire harness or mounting accessories included.
- SLA / AGM spill proof battery has a characteristic of high discharge rate, wide operating temperatures, long service life and deep discharge recover.
An affordable battery that packs a punch that features a high discharge rate, deep discharge recovery, wide operating temps, and long service life. You can mount this battery in any position which increases its versatility and its non-spillage advanced glass mat technology makes the battery 20 times more shock resistant than other batteries.
Pros
- Impact-resistant design
- Can function in different mounting positions
- Durable power source
Cons
- CCA rating is not that great
Factors to consider
Voltage
Most riding mower batteries are 12V batteries, but some batteries have a higher voltage so you need to check how much voltage your mower needs.
Terminal position
Batteries are categorized into different groups according to their size and voltage. Most riding mower batteries are grouped in the U1 group that has their positive terminals on the left side and the U1R batteries have their positive terminal on the right side.
Cold cranking amps
The CCA rating is the current quantity the battery can produce power in 30 seconds at very low temps. The higher the number, the more power the battery can put out in one burst at low temps.
Conclusion
A good battery will provide a smooth lawn mowing experience and the Mighty Max ML-35 12V 35AH SLA battery is a versatile battery that is compatible with most mower brands and is maintenance-free.
FAQ
Are all lawn mower batteries the same?
Most riding mower batteries are usually the same voltage and size, so in most instances, you’ll need a 12v replacement battery.
Are all U1 batteries the same?
The group U1 batteries are in 2 categories, the U1L with the positive slot in the left corner and U1R with the positive slot at the right corner.