Lester Electrical 1050W Summit Series II, 48V / 22A
lesterelectrical.com/products/1050w-summit-series-ii
The Lester Electrical 1050W Summit Series II, 48V / 22A is a golf cart charger with 22 A maximum at 48 V of charging current.
Last updated: 1 October 2026
Battery and charging
- Battery types it will charge
- Lead-acid wet, AGM and gel, lithium, and custom
- Output current
- 22 A maximum at 48 V
- Output power
- 1050 W
- Maximum output voltage
- 72 Vdc at 48 V nominal
“Battery types Lead-acid (Wet / AGM / Gel), Lithium, custom”
Source: lesterelectrical.com/wp-content/uploads/2026/08/1050W-V2-Datasheet.pdf
“Current, maximum 25 A 25 A 22 A”
Source: lesterelectrical.com/wp-content/uploads/2026/08/1050W-V2-Datasheet.pdf
“DC OUTPUT Power 1050 W Voltage, nominal 24 Vdc 36 Vdc 48 Vdc”
Source: cdn.prod.website-files.com/62b1d1ced3ce357ed11bccde/66e1f50dcfff23c3a7e91f7d_Summit Series II_1050W_V2_DATA SHEET_091024.pdf
“Voltage, nominal 24 Vdc 36 Vdc 48 Vdc Voltage, maximum 36 Vdc 54 Vdc 72 Vdc”
Source: lesterelectrical.com/wp-content/uploads/2026/08/1050W-V2-Datasheet.pdf
Battery care and safety
- Operating temperature range
- -25 °C to 60 °C
“Operating temperature -25 °C to 60 °C (-13 °F to 140 °F)”
Source: lesterelectrical.com/wp-content/uploads/2026/08/1050W-V2-Datasheet.pdf
Size and fit
- AC input connector
- An IEC 60320 C16 inlet, with a clamp
“AC input connector IEC 60320 C16 inlet with cord clamp”
Source: lesterelectrical.com/wp-content/uploads/2026/08/1050W-V2-Datasheet.pdf
Compatibility
- Other uses its maker names
- Charger Lester Summit II 48V, 1050W, 22A, universal AC with cord for STAR Lithium Battery.
- What its maker says it is for
- Golf cars, aerial work platforms, material handling, floor care and more
- Cordset part numbers, by cart plug
- Lester publish a cordset part number per cart plug — E-Z-GO and Club Car
“Charger Lester Summit II 48V, 1050W, 22A, universal AC with cord for STAR Lithium Battery.”
Source: cdn.prod.website-files.com/68922d223da69764209de6eb/68dee29fe3faeb9da46ece44_2026_Manual_Sirius.pdf
“The Summit Series® II charger family is a cornerstone of Lester Electrical's motive power charging portfolio. Offering advanced communication capabilities, flexible battery compatibility, and rugged industrial performance, Summit Series® II chargers are well suited for golf cars, aerial work platforms, material handling equipment, floor care machines, and other demanding applications.”
Source: lesterelectrical.com/wp-content/uploads/2026/08/1050W-V2-Datasheet.pdf
“3 Wire, 12AWG, 9ft, DC Cordset with 48V CCI Gray Molded Plug 41892S 3 Wire, 12AWG, 12ft, DC Cordset with 48V CCI Gray Molded Plug 41893S 2 Wire, 12AWG, 9ft, DC Cordset with 48V E-Z-GO Powerwise Plug 42457S 2 Wire, 12AWG, 12ft, DC Cordset with 48V E-Z-GO Powerwise Plug 42458S”
Source: lesterelectrical.com/wp-content/uploads/2026/08/6564c6ff9191b6d3ae34394e_43068_J1.pdf
Frame and components
- Enclosure rating
- IP66 and NEMA 4
“Enclosure rating IP66, NEMA 4”
Source: lesterelectrical.com/wp-content/uploads/2026/08/1050W-V2-Datasheet.pdf
Identity
- The models and part numbers it covers
- Three models; the 48V/22A is part 28750
“AVAILABLE MODELS 48V / 22A 36V / 25A 24-48V / 25-22A 28750 29410 30410”
Source: lesterelectrical.com/wp-content/uploads/2026/08/1050W-V2-Datasheet.pdf
Other findings
- Efficiency programmes it is listed under
- DOE and CEC efficiency rules
- Overall dimensions
- 336 x 182 x 105 mm, removable feet not included
- Weight as stated
- 10.216 lb (4.633 kg)
“Efficiency DOE Code of Federal Regulations, CEC Appliance Efficiency Regulations, Title 20; 10 CFR Part 430”
Source: lesterelectrical.com/wp-content/uploads/2026/08/1050W-V2-Datasheet.pdf
“Dimensions (LxWxH), (removable feet not included) 336 x 182 x 105 mm (13.203 x 7.171 x 4.141 in)”
Source: lesterelectrical.com/wp-content/uploads/2026/08/1050W-V2-Datasheet.pdf
“Weight 10.216 lbs (4.633 Kgs)”
Source: lesterelectrical.com/wp-content/uploads/2026/08/1050W-V2-Datasheet.pdf
Certification claims
- Safety and emissions claims
- Seven claims of five different kinds, recorded as written
“Safety / Emissions UL recognized/listed; cUL certified; FCC Part 15; ICES-003; EN safety, emissions, immunity; CE Certified; ACMA RCM (C-Tick)”
Source: lesterelectrical.com/wp-content/uploads/2026/08/1050W-V2-Datasheet.pdf
Sources
- Lester Electrical — 1050W Summit Series II product pageManufacturer model page
Lester Electrical
Source: lesterelectrical.com/products/1050w-summit-series-ii
Retrieved September 24, 2026
- Lester Electrical — 1050W V2 DatasheetManufacturer document
Lester Electrical
Source: lesterelectrical.com/wp-content/uploads/2026/08/1050W-V2-Datasheet.pdf
Retrieved September 24, 2026
- Lester Electrical — 6564c6 ff 9191b6d3 ae 34394e 43068 J1Manufacturer document
Lester Electrical
Source: lesterelectrical.com/wp-content/uploads/2026/08/6564c6ff9191b6d3ae34394e_43068_J1.pdf
Retrieved September 24, 2026
- STAR Electric Vehicles SIRIUS Parts Manual, 17 Controller Assembly (p.49)Manufacturer document
STAR EV
Source: cdn.prod.website-files.com/68922d223da69764209de6eb/68dee29fe3faeb9da46ece44_2026_Manual_Sirius.pdf
Retrieved October 1, 2026
- Archived document
Source: cdn.prod.website-files.com/62b1d1ced3ce357ed11bccde/66e1f50dcfff23c3a7e91f7d_Summit Series II_1050W_V2_DATA SHEET_091024.pdf
Retrieved October 1, 2026