24/7 mobile jump start for your Rivian, Lucid, Polestar, Fisker & VinFast VinFast VF9 (2020–2026) in Sacramento using ECU-Safe Regulated 12V/16V EV Auxiliary Power Supply.
Rivian R1T / R1S / EDV: Pull-out dual 12V jump leads located behind the rear bumper hitch panel next to the 7-pin trailer connector! Polestar 2 / Lucid Air: Frunk emergency release + under-hood 12V posts.
Rivian R1T and R1S pickups/SUVs use two compact 12V AGM batteries under the cowl; if they drain, the vehicle bricks until boosted via the hidden rear bumper hitch pigtail leads.
Post-boost verification of High-Voltage DC-DC Converter output (13.8V–14.8V on 12V; 27.6V–28.4V on 24V commercial).
| Generation | Battery Group | CCA | Alternator | Starter | System Notes |
|---|---|---|---|---|---|
| VinFast VF9 (2021–2026) | Dual 12V 18Ah AGM (Rivian) / 12V AGM Group 47/48 (Polestar/Lucid) | Low-Voltage Auxiliary Contactor Supply | High-Voltage DC-DC Converter (14.2V–14.8V) | HV Battery Contactor Activation | Smart LIN/BSD Regulated AGM / Aux |
| VinFast VF9 (2015–2020) | Dual 12V 18Ah AGM (Rivian) / 12V AGM Group 47/48 (Polestar/Lucid) | Low-Voltage Auxiliary Contactor Supply | High-Voltage DC-DC Converter (14.0V–14.6V) | HV Battery Contactor Activation | High-Reserve AGM / EFB Start-Stop |
| VinFast VF9 (2008–2014) | Dual 12V 18Ah AGM (Rivian) / 12V AGM Group 47/48 (Polestar/Lucid) | Low-Voltage Auxiliary Contactor Supply | High-Voltage DC-DC Converter (13.8V–14.4V) | HV Battery Contactor Activation | High-CCA AGM / Lead-Acid |
| VinFast VF9 (1998–2007) | Dual 12V 18Ah AGM (Rivian) / 12V AGM Group 47/48 (Polestar/Lucid) | Low-Voltage Auxiliary Contactor Supply | High-Voltage DC-DC Converter (13.8V–14.2V) | HV Battery Contactor Activation | OEM Group Lead-Acid / AGM |
| VinFast VF9 (1980–1997) | Dual 12V 18Ah AGM (Rivian) / 12V AGM Group 47/48 (Polestar/Lucid) | Low-Voltage Auxiliary Contactor Supply | High-Voltage DC-DC Converter (13.6V–14.2V) | HV Battery Contactor Activation | Standard BCI High-CCA |
