Motobatt 12V AGM Battery - MB12U
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The Motobatt 12V AGM Battery - MB12U is engineered for riders who need dependable starting power, long service life, and zero maintenance. Designed for motorcycles, ATVs, UTVs, and side-by-sides, this high-performance powersports battery delivers a noticeable upgrade over standard AGM replacements.
Motobatt’s patented Quadflex technology is the key advantage. By utilizing unused internal space found in conventional batteries, Quadflex supports larger internal plates and an optimized balance between ampere hours and cold cranking amps. Thicker grids, denser paste, and increased active material allow the MB12U to deliver up to 30% more capacity and power than same-size competitor batteries—resulting in stronger starts and more consistent performance, even in cold conditions.
Built with premium AGM (absorbed glass mat) construction, the MB12U is fully sealed, spill-proof, and highly resistant to vibration and internal weld fatigue. It’s factory activated and maintenance-free, eliminating acid handling and setup time. Shipping pre-charged at over 12.5 volts, it’s ready to install right out of the box. Solid-mounted terminals with threaded inserts ensure secure connections and long-term reliability.
For riders searching for a high-performance 12V AGM powersports battery that combines power, durability, and convenience, the Motobatt MB12U is a confident, ride-ready choice.
Replaces:
- Yuasa YB12AA, YB12AA, SYB12AAWS, YB12ALA, YB12ALA2, YB12AB, YB12CA, 12N124A, 12N124A1
- WPS 491-1016
Installation Instructions:
Specifications:
| Battery Type | MB12u | |
|---|---|---|
| Voltage | 12 | |
| CCA | 160 | |
| MCA | 233A | |
| PHCA | 405A | |
| Capacity (10HR) | 15Ah | |
| Weight | 4.40kg / 9.7Ibs | |
| Dimensions (in / mm) | L: 5.28(134) W: 3.15(80) H: 6.34(161) TH: 6.89(175) | |
| Assembly Figure Terminal Locations | 4 |  |
| Terminals | 2, M6x2.5 (Part#MPT2) | |
| Screws | 4, M6X7 (Part#2xMPS2) | |
| Allen Wrench | 1, 4x4 (Part#MPAK2) | |
| Terminal Caps | 4, 12x5.5 (Part#2xMPC2) | |
| Spacer | 1, 14mm Bottom (Part#MPBS5) | |
