
Mechman GM Alternator Voltage Boost Harness 1V Increase for Lithium Batteries
- This voltage boost harness fits alternators with a GM 4 pin plug and is similar
- Plug and Play
- This harness can be used with engine swap applications where the stock alternator harness is not available
- NOTE: This unit is NOT FOR USE ON STANDARD 12V AGM BATTERIES. This module will increase the charging voltage by appx. 1.0 Volt and will swell and damage AGM batteries. Please check with your Lithium battery manufacturer to verify the proper charging voltage before installing this module!
Introducing the P101-L voltage boost harness, the perfect solution for secondary alternator setups or engine swap applications. Designed to fit alternators with a GM 4 pin plug, this harness is similar to our "plug and play" H104-L harness, but with a simplified design for a cleaner look.
With the yellow wire connected to an ignition switched 12V+ source, the P101-L allows you to easily turn the alternator on and off with ignition. And with the blue wire connected to the alternator's threaded output stud, you can rest assured that your alternator is running smoothly and efficiently.
The P101-L can also be used without the blue wire connected, making it a versatile solution for those who are currently running a regular battery but plan to upgrade to a Lithium battery later in their build.
However, it's important to note that this harness is NOT FOR USE ON STANDARD 12V AGM BATTERIES. This module will increase the charging voltage by approximately 1.0 Volt, which can cause AGM batteries to swell and become damaged. Before installing this module, please check with your Lithium battery manufacturer to verify the proper charging voltage.
Upgrade your alternator setup with the P101-L voltage boost harness, the perfect combination of simplicity and efficiency.
- This voltage boost harness fits alternators with a GM 4 pin plug and is similar
- Plug and Play
- This harness can be used with engine swap applications where the stock alternator harness is not available
- NOTE: This unit is NOT FOR USE ON STANDARD 12V AGM BATTERIES. This module will increase the charging voltage by appx. 1.0 Volt and will swell and damage AGM batteries. Please check with your Lithium battery manufacturer to verify the proper charging voltage before installing this module!
Introducing the P101-L voltage boost harness, the perfect solution for secondary alternator setups or engine swap applications. Designed to fit alternators with a GM 4 pin plug, this harness is similar to our "plug and play" H104-L harness, but with a simplified design for a cleaner look.
With the yellow wire connected to an ignition switched 12V+ source, the P101-L allows you to easily turn the alternator on and off with ignition. And with the blue wire connected to the alternator's threaded output stud, you can rest assured that your alternator is running smoothly and efficiently.
The P101-L can also be used without the blue wire connected, making it a versatile solution for those who are currently running a regular battery but plan to upgrade to a Lithium battery later in their build.
However, it's important to note that this harness is NOT FOR USE ON STANDARD 12V AGM BATTERIES. This module will increase the charging voltage by approximately 1.0 Volt, which can cause AGM batteries to swell and become damaged. Before installing this module, please check with your Lithium battery manufacturer to verify the proper charging voltage.
Upgrade your alternator setup with the P101-L voltage boost harness, the perfect combination of simplicity and efficiency.
Original: $3,100.00
-70%$3,100.00
$930.00Description
- This voltage boost harness fits alternators with a GM 4 pin plug and is similar
- Plug and Play
- This harness can be used with engine swap applications where the stock alternator harness is not available
- NOTE: This unit is NOT FOR USE ON STANDARD 12V AGM BATTERIES. This module will increase the charging voltage by appx. 1.0 Volt and will swell and damage AGM batteries. Please check with your Lithium battery manufacturer to verify the proper charging voltage before installing this module!
Introducing the P101-L voltage boost harness, the perfect solution for secondary alternator setups or engine swap applications. Designed to fit alternators with a GM 4 pin plug, this harness is similar to our "plug and play" H104-L harness, but with a simplified design for a cleaner look.
With the yellow wire connected to an ignition switched 12V+ source, the P101-L allows you to easily turn the alternator on and off with ignition. And with the blue wire connected to the alternator's threaded output stud, you can rest assured that your alternator is running smoothly and efficiently.
The P101-L can also be used without the blue wire connected, making it a versatile solution for those who are currently running a regular battery but plan to upgrade to a Lithium battery later in their build.
However, it's important to note that this harness is NOT FOR USE ON STANDARD 12V AGM BATTERIES. This module will increase the charging voltage by approximately 1.0 Volt, which can cause AGM batteries to swell and become damaged. Before installing this module, please check with your Lithium battery manufacturer to verify the proper charging voltage.
Upgrade your alternator setup with the P101-L voltage boost harness, the perfect combination of simplicity and efficiency.






















