48V 1.5kWh* Commercial Battery
Swappable Battery Pack - Si1.5
- Award Winning Innovation
- Same Battery. Multiple Applications.
- Easily swap batteries across applications on the jobsite to minimize downtime.
- Independent paralleling (available 2026) lets you connect multiple Vanguard™ batteries seamlessly for the power you need.
- Download our battery literature for full details and specifications.
Features
Reliable and Durable
Withstands abuse, debris, water, and dirt.
Swappable
Ability to swap out from application to application on the jobsite to reduce downtime. This allows the user to easily remove batteries without causing strain or injury.
Power Enthusiastic
Works across multiple product platforms and types of equipment in a wide range of markets providing flexibility and cost efficiencies.
Ergonomic
The weight makes it easy to handle and transport, weighing just 26 pounds. Its built-in handle ensures a comfortable and secure grip, reducing strain during use and enhancing overall portability.
Charge Time
Can be fully charged in just 75 minutes when using the Vanguard 1425W charger, ensuring minimal downtime and quick readiness for your next use.
Increased Operator Comfort
This is a result of less noise, vibration, and harshness on equipment operators.
Assembled in the USA
The Si1.5 is designed, engineered, and assembled in the USA.
8 Year Commercial Limited Warranty
Vanguard now offers an 8 year commercial limited warranty for all lithium-ion battery packs. CLICK HERE for more information.
Specifications
| 48V 1.5kWh* Commercial Battery | |
| Model Number | 48V 1.5kWh* Commercial Battery |
| Si Series Name | Si1.5 |
| Nominal Voltage (V) | 51.4 |
| Charge Voltage (per IEC 61960) | 58.8 |
| Discharge Cutoff Voltage | 42.0 |
| Nominal Capacity per IEC 61960 | 28.4 Ah |
| Communication Protocols | CANJ1939 (29-bit, 500kbps) |
| Discharge Temperature Range | -4°F to +140°F (-20°C to +60°C) |
| Charge Temperature Range | +32°F to +113°F (0°C to +45°C) |
| Marketed Durability | Up to 1,000 cycles to 80% initial capacity |
| Discharge Current, Nominal | 29 A |
| Parallel Capable | Yes, up to 10 batteries (Available 2026) |
| Operator's Manuals | No documents found. |
Support
Operator's Manuals
Download the operator’s manual for your Vanguard battery by searching your battery model number.
Dealer Locator
Find the right dealer for all your commercial battery needs with our certified Vanguard Commercial Power dealers.
Product Literature
Get more detailed information by downloading our battery spec sheets.