Motobatt MLX4U MAX-HP Battery 12V 4Ah LiFePO4.
Replacement for Motobatt MLX4U MAX-HP 12v LiFePO4 battery, with 320CCA and 4ah weighing very little.
This is one of Motobatt's smallest and lightest Pro Lithium units, aimed squarely at off-road and motocross machines where shaving weight off the bike actually matters. The onboard cell-balancing circuit keeps the cells in step during use, and the battery can take a 90% charge in around six minutes flat, useful if you're topping up between motos rather than leaving it on a trickle charger overnight.
- Motobatt MLX4U MAX-HP battery replacement
A battery that's on the way out on a race or trail bike tends to show itself as slower, more hesitant kick-over on the electric start, needing several attempts to fire, or a bike that starts fine cold but struggles to restart after stalling mid-ride when it's warm. Given how much lighter and more compact this cell is than the original, it's also worth checking it's seated securely in the battery box, since a loose fit can shake connections loose on rough terrain.
There are a few closely related Motobatt part numbers in this size range, so it's worth double-checking the code printed on your old battery and the dimensions given on this page rather than assuming from the bike model alone; case dimensions and terminal spacing can differ slightly between them even though they look similar at a glance.
Replaces YTX5L-BS, YTZ7S, MBTX4U, MBTZ7S and MBTX7U.
Specifications
Voltage: 12v
Capacity: 4.5Ah @20hr
Cold Cranking Amps: 320CCA
Chemistry: LiFePO4 (Lithium Iron Phosphate).
Dimensions for the Motobatt MLX4U MAX-HP:
Length: 114mm / 4.49-inches
Width: 70mm / 2.76-inches
Height: 87mm / 3.43-inches (up to 127mm with foam spacers fitted).
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