SIP 07221 STARTMASTER® 2500A 12V Lithium Jump Starter - Available from November 2026
The SIP STARTMASTER® 2500A 12V Lithium Jump Starter is a versatile battery booster and portable power pack designed with the highest quality LiFePO4 Lithium-Ion cells for assured power and longevity during demanding, repetitive jump-starting tasks.
Extremely lightweight - just 1.9kg! - while delivering high-current power, this vehicle jump starter is perfect for motorcycles, cars and smaller vans. With a Battery Management System, cranking timer and post-crank cool down, it provides a high degree of safety.
With a durable ABS casing and LED light for poor or emergency conditions, this 12V booster pack is ideal for use in garages, workshops, dealerships, forecourts, service centres or roadside assistance as the complete emergency jump starter solution.
Applications & uses: Suitable for garages and workshops, dealerships and forecourts, MOT and service centres, roadside breakdown or mobile servicing.
What's in the box?: 1x SIP STARTMASTER® 2500A 12V Lithium Jump Starter, 15V 1A charger cable.
SIP 2-Year Standard Warranty
Powerful engine jump starting & integrated safety measures.
- Simply connect the clamps, hit Engine Start, crank the engine and let the STARTMASTER® do the rest.
- Easy-to-read digital display with voltmeter function for accurate monitoring of voltage and charge status.
- Reverse polarity, short circuit, overheat, overcharge and over-discharge protections for added safety.
- Insulated and ergonomic copper-coated clamps and high-quality leads for added durability.
Quality lithium-ion lifePO4 cells provide consistently reliable boosting performance.
- UN38.3 certified Lithium-Ion (LiFePO4) battery for superior performance, increased safety and exceptional longevity.
- High-quality A-grade cells offer better capacity retention, efficient power delivery and consistent cell-to-cell balancing.
Battery management system (BMS) projects the starter & vehicle for increased durability.
- 5sec engine cranking timer controls current spikes within safe limits and reduces stress on starter, battery and motor.
- 3min mandatory cool down period between cranks ensures added durability and protection for both the starter and vehicle.
- Prohibiting successive cranks manages heat dissipation on the cells or BMS and prevents serious thermal runaway.
- Allows recovery of a stable voltage to maintain integrity and effectiveness of the next crank for added durability.
Portable 16,000MAH power bank is ideal for charging devices, electronics & equipment.
- 5V 2.4A USB-A and 12V DC 8A output for charging electronics and devices including smartphones, tablets and laptops on-the-go.
- Extremely lightweight and compact 1.9kg design with protective ABS/PC casing and robust clamps grip and cable hooks.
Zero maintenance starter with light is ideal for garages, workshops & roadside assistance.
- Ideal for garages and workshops, dealerships and forecourts, MOT and service centres, roadside breakdown and mobile servicing.
- 27 Lumen LED light with steady, slow flash, fast flash and SOS settings ideal for poor visibility or emergency conditions.
- Comfortably provides the high-current crank needed for effective starting of petrol and diesel vehicles.
Technical Data
| ITEM NO. | 07221 |
| Output Voltage: | 12V |
| Peak Current: | 2500A |
| Cranking Current (CA): | 700A |
| Battery Technology: | LiFePO4 |
| Battery Capacity: | 51.2Wh LiFePO4 (4Ah @ 12.8V DC) |
| Input Supply: | 15V DC 1A |
| USB-A Output: | 5V DC 2.4A |
| DC Output: | 12V DC 8A |
| Operating Temperature: | -10°C - 45°C |
| Charging Temperature: | 0°C - 45°C |
| Storage Temperature: | -20°C - 60°C |
| Compatible Engine Types: | Petrol; up to 8.5L (12V) / Diesel; up to 6.5L (12V) |
| Net Weight: | 1.9kg |
| Gross Weight: | 2.1kg |
| Product Dimensions: | 225(H) x 240(W) x 90mm(D) |
| Packaged Dimensions: | 237(H) x 253(W) x 104mm(D) |