Vanguard 48V 1,5kWh Swappable Commercial Battery Pack (Si1.5)
SKU 80105739
Vanguardvanguardpower.com/en-gb/batteries/lithium-ion-battery-packs/swappable-battery-packs/si-swappable-commercial-battery-48v-1-5-kwh
The Vanguard 48V 1,5kWh Swappable Commercial Battery Pack (Si1.5) is a battery pack with a nominal voltage of 51,4 V, a nominal capacity of 28,4 Ah, 1,51 kWh of energy, a weight of 11,8 kg, an ingress rating of IP55 and dimensions of 258mm x 136mm x 425mm.
Last updated: 8 October 2026
Battery and charging
- Communications bus
- CANJ1939 (29-bit, 500kbps)
- Rated charge cycles
- Up to 1.000 cycles to 80% initial capacity
- Nominal capacity
- 28,4 Ah
- Nominal voltage
- 51,4 V
- Discharge cut-off
- 42,0 V
- Stated energy
- 1,51 kWh
“Nominal Capacity per IEC 61960 28,4 Ah / 1,51 kWh Communication Protocols CANJ1939 (29-bit, 500kbps)”
Source: vanguardpower.com/en-gb/batteries/lithium-ion-battery-packs/swappable-battery-packs/si-swappable-commercial-battery-48v-1-5-kwh
“Charging Temperature Range 0°C to +45°C Marketed Durability Hours/Cycles Up to 1.000 cycles to 80% initial capacity”
Source: vanguardpower.com/en-gb/batteries/lithium-ion-battery-packs/swappable-battery-packs/si-swappable-commercial-battery-48v-1-5-kwh
“Cutoff Voltage (V) 42,0 Nominal Capacity per IEC 61960 28,4 Ah / 1,51 kWh”
Source: vanguardpower.com/en-gb/batteries/lithium-ion-battery-packs/swappable-battery-packs/si-swappable-commercial-battery-48v-1-5-kwh
“Model Number 80105739 Nominal Voltage (V) 51,4”
Source: vanguardpower.com/en-gb/batteries/lithium-ion-battery-packs/swappable-battery-packs/si-swappable-commercial-battery-48v-1-5-kwh
“Top Voltage (V) for EV-Applications 58,1 Cutoff Voltage (V) 42,0”
Source: vanguardpower.com/en-gb/batteries/lithium-ion-battery-packs/swappable-battery-packs/si-swappable-commercial-battery-48v-1-5-kwh
“Cutoff Voltage (V) 42,0 Nominal Capacity per IEC 61960 28,4 Ah / 1,51 kWh”
Source: vanguardpower.com/en-gb/batteries/lithium-ion-battery-packs/swappable-battery-packs/si-swappable-commercial-battery-48v-1-5-kwh
Battery care and safety
- Ingress protection
- IP55
- Charge temperature range
- 0°C to +45°C
- Discharge temperature range
- -40°C to +60°C
Source: vanguardpower.com/hubfs/Vanguard/EMEA/Files/Brochures Sales Sheets/VAN_EU_Commercial_Guide_2026_Brochure_web.pdf
“Discharge Temperature Range -40°C to +60°C Charging Temperature Range 0°C to +45°C”
Source: vanguardpower.com/en-gb/batteries/lithium-ion-battery-packs/swappable-battery-packs/si-swappable-commercial-battery-48v-1-5-kwh
“Communication Protocols CANJ1939 (29-bit, 500kbps) Discharge Temperature Range -40°C to +60°C”
Source: vanguardpower.com/en-gb/batteries/lithium-ion-battery-packs/swappable-battery-packs/si-swappable-commercial-battery-48v-1-5-kwh
Size and fit
- Weight
- 11,8 kg
- Overall dimensions
- 258mm x 136mm x 425mm
“Weight (kg) 11,8 (as printed on the page)”
Source: vanguardpower.com/hubfs/Vanguard/EMEA/Files/Brochures Sales Sheets/VAN_EU_Commercial_Guide_2026_Brochure_web.pdf
“Dimensions L x W x H (mm) 258 x 136 x 425”
Source: vanguardpower.com/hubfs/Vanguard/EMEA/Files/Brochures Sales Sheets/VAN_EU_Commercial_Guide_2026_Brochure_web.pdf
Identity
- Model code
- 80105739
“Model Number 80105739 (as printed on the page)”
Source: vanguardpower.com/hubfs/Vanguard/EMEA/Files/Brochures Sales Sheets/VAN_EU_Commercial_Guide_2026_Brochure_web.pdf
“Si Series Name Si1.5 Model Number 80105739”
Source: vanguardpower.com/en-gb/batteries/lithium-ion-battery-packs/swappable-battery-packs/si-swappable-commercial-battery-48v-1-5-kwh
Other findings
- Charge current max
- less than 12 A, 120V 60Hz / 220V 50Hz (charger input)
- Charge time full
- 75 minutes to 100% with the 1425W charger, at nominal temperatures
- Top voltage
- 58,8 V
“Vanguard Charger Input Power <12A, 120V, 60HZ/220V, 50HZ”
Source: vanguardpower.com/en-gb/batteries/lithium-ion-battery-packs/swappable-battery-packs/si-swappable-commercial-battery-48v-1-5-kwh
“Ability to parallel batteries Charge time to 100% with 1425W Charger 1 75 minutes”
Source: vanguardpower.com/en-gb/batteries/lithium-ion-battery-packs/swappable-battery-packs/si-swappable-commercial-battery-48v-1-5-kwh
“Nominal Voltage (V) 51,4 Top Voltage (V) per IEC 61960 58,8”
Source: vanguardpower.com/en-gb/batteries/lithium-ion-battery-packs/swappable-battery-packs/si-swappable-commercial-battery-48v-1-5-kwh
Sources
- Vanguard™ 48V 1,5kWh Swappable Commercial Battery Pack (Si1.5)Manufacturer document
Vanguard
Source: vanguardpower.com/en-gb/batteries/lithium-ion-battery-packs/swappable-battery-packs/si-swappable-commercial-battery-48v-1-5-kwh
Retrieved September 24, 2026
- Vanguard — VAN EU Commercial Guide 2026 Brochure webManufacturer document
Vanguard
Source: vanguardpower.com/hubfs/Vanguard/EMEA/Files/Brochures Sales Sheets/VAN_EU_Commercial_Guide_2026_Brochure_web.pdf
Retrieved September 24, 2026