Motobatt 12V AGM Battery - MBT14B4
The Motobatt 12V AGM Battery – MBT14B4 is built for riders and mechanics who demand dependable starting power, long service life, and zero maintenance from a high-performance powersports battery. Designed as a premium upgrade over standard replacements, this battery delivers stronger starts and consistent output for motorcycles, ATVs, UTVs, and other powersports applications.
At the heart of the MBT14B4 is Motobatt’s patented Quadflex technology, engineered to maximize both amp-hour capacity and cold cranking amps. By utilizing unused internal space found in conventional batteries, Quadflex allows for larger internal plates without increasing the battery’s physical size. Combined with increased grid thickness, higher paste density, and more active material, this design provides up to 30% more capacity and power than same-size competitor batteries—especially noticeable during cold starts and high electrical demand.
Built with premium AGM (absorbed glass mat) construction, the MBT14B4 is fully sealed, spill-proof, and extremely resistant to vibration and internal weld fatigue. This makes it ideal for harsh riding environments where traditional batteries often fail prematurely. The battery is factory activated and maintenance-free, with no acid to add and no setup required.
Shipping pre-charged at over 12.5 volts, the Motobatt MBT14B4 is ready to install right out of the box. Improved solid-mounted terminals with threaded inserts ensure secure connections and long-term reliability. For riders seeking a high-performance 12V AGM powersports battery, the MBT14B4 delivers power, durability, and confidence every time you hit the start button.
Replaces:
- Yuasa YT14BBS, YT14B4
- WPS 491-1019
Installation Instructions:
Specifications:
| Battery Type | MBT14B4 | |
|---|---|---|
| Voltage | 12 | |
| CCA | 180 | |
| MCA | 243A | |
| PHCA | 425A | |
| Capacity (10HR) | 14Ah, C20 14.8Ah | |
| Weight | 4.10kg / 9.04Ibs | |
| Dimensions (in / mm) | L: 5.91(150) W: 2.76(70) H: 5.71(145) | |
| Assembly Figure Terminal Locations | 2 |  |
| Terminals | 2 Fixed | |
| Screws | 2x Screws M6x12 (PART MPS4) | |
| Block Nut | 2x Blocknut M6 (PART MPN2) | |
| Terminal Caps | 2, 12x5.5 (Part MPC2) | |
