48-Volt Idle Max Alternator – LiFePO4 (B11480100-EXT-LFP)
Engineered for use with LiFePO4 battery banks, this high-output alternator delivers full charging capability at idle. Housed in a GM Vortec-style case with a slightly increased housing size, it provides strong performance while maintaining broad aftermarket bracket compatibility. Customers must ensure there is adequate clearance for installation due to the increased housing size.
This alternator is ideal for overland and RV power systems, keeping lithium banks charged during extended off-grid stays. It’s also a strong fit for commercial and industrial vehicles running heavy onboard loads, as well as emergency and backup power setups where dependable charging at idle is critical. In short, it provides serious charging power right where you need it most.
- Direct-Fit Design: GM Vortec mount ensures compatibility with many aftermarket brackets.
- High-Output Ready: Produces up to 50A (2,600 watts) at idle and up to 100A peak output for maximum efficiency.
- Includes: Alternator preprogrammed with a generic LiFePO4 charge profile for use with battery banks 100Ah or larger.
- Complete Kit: Designed for easy integration with Wakespeed regulators.
- 27ft Wiring Harness Included: Provides flexibility for longer runs and custom installs.
Note: This alternator is supplied with an 8-groove, 50mm pulley. If using a belt with fewer than 8 grooves, the belt must be aligned with the inward grooves closest to the alternator face. Because of the high power these units produce at idle, some smaller engines may require our 6-groove underdrive pulley for proper operation.
⚠️ Customer Responsibility: Customers must be running a battery bank of at least 100Ah. It is critical that the customer confirms the generic profile matches their battery requirements. Refer to the image below and your battery manufacturer’s specification sheet before installation. Mechman will not be responsible for issues caused by a mismatch. Adjustments can be made through the Wakespeed app if required.
