The "VPH" series are the most popular Voltphreaks batteries. The main thing the battery needs to do is start the car. Once the engine is running, the alternator supplies the power. The chart below breaks up the various Voltphreaks models by the size of the recommended engine they can start.
These are general recommendations, what is best for you can depend on if you have a harder or easier to crank/start engine, if you use your car in a warm or cold climate, engine displacement, compression, etc.
|VPH750||Most cars, as long as they don't have a hard to start, high displacement engine, can use this battery. This is suitable for most users.||5.5 lbs, can replace most lead-acid batteries|
|VPH1200||Any application that requires the most power and capacity, or if you wish to leave car parked for long periods (ex: weeks).||8.75 lbs, can replace just about any car lead-acid batteries|
|VPR (Endurance) series||If you want best power/capacity to weight ratio, check out the VPR (Endurance) series, the most popular model for track and professionals.||6.0 lbs|
* Note that some Porsche GT models may not properly charge the Voltphreaks battery, due to the alternator's voltage being too low. Click here for more information.