Product Specifications for Motobatt MBU1-35 12V 35Ah AGM Battery
| BM Part #: | BM-MBU1-35 |
|---|---|
| Brand: | Motobatt |
| Voltage: | 12 Volt |
| Cold Cranking Amps: | 420 CCA |
| Capacity: | 35 Ah |
| Type: | AGM |
| Length: | 7.68" |
| Width: | 5.16" |
| Height: | 7.13" |
| Shipping Weight: | 23.65Lbs |
| Warranty: | 1 Year |
- Deep Cycle AGM Design: Built to handle repeated charge and discharge cycles, making it ideal for daily use in mobility scooters, power wheelchairs, and lawn equipment.
- Maintenance-Free and Spill-Proof: Sealed AGM construction means no water checks, no acid spills, and no ongoing upkeep, just install and go.
- 35Ah Capacity with 420 CCA: Delivers ample runtime for extended use and reliable cold-weather starting for tractors, generators, and outdoor power equipment.
- Low Self-Discharge Rate: Retains 91% of its charge after three months in storage and 82% after six months, so it's ready when you need it after sitting idle.
- Direct Replacement for Yuasa U1 Series: Drops in as a replacement for Yuasa U1-7, U1-9, U1-32, and U1HL-11 batteries with no modifications needed.
- Vibration-Resistant Construction: The sealed AGM build holds up well to the bumps and movement of scooters and outdoor equipment, helping protect battery life over time.
Product Description
When your mobility scooter, power wheelchair, or lawn equipment needs a reliable battery you can count on day after day, the Motobatt MBU1-35 delivers. This 12V, 35Ah AGM battery is purpose-built for deep cycle applications, meaning it's designed to be discharged and recharged repeatedly without losing performance over time. Whether you depend on your scooter for daily independence or just want your riding mower to start without a fight, this battery is built for the long haul.
Built for Deep Cycle Performance
Unlike a standard starting battery, which delivers a short burst of power and then stays mostly charged, a deep cycle battery is designed to provide steady, sustained power through each use. The MBU1-35 excels at this. With a 35Ah capacity (10-hour rate) and a peak discharge current of 1,000 amps, it has the reserves to power demanding equipment through extended sessions. It also carries a 420 CCA rating, so it handles cold weather starts well for equipment like generators or lawn tractors.
AGM Technology Means No Maintenance
The MBU1-35 uses Absorbed Glass Mat (AGM) construction, which offers several practical advantages over older flooded lead-acid designs:
- No water to add or check
- Completely sealed and spill-proof
- Can be installed in virtually any orientation
- Resistant to vibration, making it ideal for scooters and outdoor equipment
Once it's in, you're done. There's no ongoing maintenance routine to worry about.
Great for Mobility Scooters and Power Wheelchairs
The U1 battery group size is one of the most common formats used in mobility scooters and power wheelchairs from brands like Pride, Golden Technologies, and many others. The MBU1-35 fits this space and delivers the consistent deep cycle performance these devices need. Keep in mind that most power wheelchairs and three- or four-wheel mobility scooters require two U1 batteries to run at full capacity, so check your owner's manual before ordering.
It also directly replaces Yuasa U1-7, U1-9, U1-32, and U1HL-11 batteries, as well as the WPS 491-1026, making it a straightforward swap for many existing setups.
Holds Its Charge During Storage
If your equipment sits unused for part of the year, the MBU1-35's low self-discharge rate means you won't come back to a dead battery. It retains 91% of its charge after three months of storage and 82% after six months. That's especially useful for seasonal equipment like riding mowers or scooters stored during winter.
Compact, Tough, and Ready to Go
Measuring 7.67" long by 5.16" wide by 7.13" tall and weighing just over 23 pounds, the MBU1-35 fits neatly into most U1 battery compartments. The sealed AGM design holds up well to the bumps and vibrations that come with scooter and outdoor equipment use, so you don't have to worry about it getting knocked loose or damaged during normal operation.
Frequently Asked Questions
What is the Motobatt MBU1-35 used for?
The MBU1-35 is designed for deep cycle and mobility applications. It's commonly used in mobility scooters, power wheelchairs, riding lawn mowers, lawn tractors, and similar equipment that relies on a U1-group battery. It can also be used in generators, UPS systems, and other equipment that requires steady, sustained power rather than a quick starting burst.
How many batteries does my mobility scooter or power wheelchair need?
Most power wheelchairs and mid-to-large mobility scooters require two U1 batteries to operate at full power. Smaller travel scooters may only need one. Check your owner's manual or the existing battery compartment to confirm how many your device requires before placing an order.
What batteries does the MBU1-35 replace?
The MBU1-35 is a direct replacement for Yuasa U1-7, U1-9, U1-32, and U1HL-11 batteries, as well as the WPS 491-1026. It also replaces other standard U1-group batteries of similar voltage and capacity used in Kawasaki, Yamaha, and Rhino mobility equipment.
Is this battery truly maintenance-free?
Yes. The MBU1-35 uses AGM (Absorbed Glass Mat) technology, which is a sealed, valve-regulated design. There are no fluid levels to check, no water to add, and no venting concerns under normal use. Once installed, it requires no routine maintenance.
What are the dimensions and weight of the MBU1-35?
The MBU1-35 measures 7.67 inches long by 5.16 inches wide by 7.13 inches tall and weighs 23.16 pounds. Always verify these dimensions against your battery compartment before purchasing to ensure a proper fit.
What charger should I use with this battery?
The MBU1-35 should be charged with an AGM-compatible charger. The recommended cycle charging voltage is 14.5V to 14.9V, and the float (maintenance) voltage is 13.6V to 13.8V. Using a smart charger designed for AGM batteries will help maximize battery life and avoid overcharging.
Cross Reference & Compatibility
Customer Reviews
I know it costs more than other batteries in it's class, but I've bought 3 of these lately for lawn mowers, motorcycles, etc. and if you compare the power and guarantee, I think it's well worth the money. I'll keep buying them.
It's as heavy as a full size car battery and as powerful too. It's not cheap but it's a lot of battery in a small package and well worth the price compared to those with a guarantee of only 90 days. I'd buy another without hesitation.
A great replacement for the typical low ampere/
hour rated scooter battery. It fits nice and
snug under the seat.

