What is the SIP GX15 Advanced Battery Charger?
The SIP GX15 is the largest charger in the series of GX5, GX10 and GX15 battery chargers, a series of advanced battery charges which have been designed for use with 12v batteries. Compatible with Lead Acid, SLA, AGM, GEL, WET, VRLA, CaCa, EFB and LiFePO4 lithium batteries.
The GX15 charger should only be used on batteries with a capacity of up to a maximum of 300Ah, the other charges in this series do differ.
3 Operating Modes:
1. Power Supply:- when you have this mode selected the charger will supply 12V Power or up to 13.7V. You may also use the device and as a float charge, this can keep some larger batteries at 100% charge, this will work in normal conditions without the limitations of time or voltage.
2. Recondition:- Use for restoring batteries into good condition by using the pulse charging programme to break up sulphate and restore.
3. Test:- Use the test function to test your battery or alternator.
SIP GX15 Key Features:
- 12v/24v output voltages and 15A output current
- Powerful multi-step microprocessor-controlled charging
- High-quality, clear and easy-to-use advanced digital interface
- Automatic maintenance, supply, test, lead, Lithium, reconditioning modes
- Wall-mountable for permanent placement in workshop environments
- Energy-efficient charging performance for reduced energy costs
- Spark protection and IP20 touch and dust resistance
- SIP 2-Year Standard Silver Warranty
- Designed in Switzerland
- Comes complete with a quick connector, clamps and eyelets.

What is the GX15 Charger Designed For?
Everyday workshop charging - The 12v & 24v output keeps customer vehicles topped up, recovering flat batteries, and maintaining stock batteries.
Home users with multiple vehicles - Perfect for people with cars / vans, 4x4’s, caravans / motorhomes or a classic car that is sat through the winter months.
Battery maintenance - Designed with a float mode which makes it ideal for long term maintenance of seasonal vehicles, motorcycles, leisure batteries and backup power systems.
Recovering deeply discharged batteries - The smart charging profile can often bring back batteries that a basic charger won’t touch.
Why Should I Buy An Advanced Battery Charger
The GX15 advanced charger protects your battery, batteries are expensive so it’s within your interest to protect your investment. A smart charger can extend the life of your battery dramatically, often by years! Designed for real-world applications, this charger is powerful whilst offering uncomplicated use. With no risk of overcharging, you can simply connect and go offering excellent value for money and a robust build quality.
A genuine workshop grade 12v/24v output with a 15a output current, this SIP 03574 charger offers high power in a simple and safe set up. Ideal for modern day cars with stop start technology the AGM and EFB support, this is the ultimate tool for charging, support and diagnostics.