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ProMotive SLI is the starting range for industrial vehicles: truck, bus, tractor and machinery. It groups what was previously sold as ProMotive HD and ProMotive SHD.
They are built to withstand the continuous vibration of heavy transport: plates anchored with resin, reinforced grid and casing prepared for severe work. The capacity and starting current are much higher than those of a passenger car, because a large displacement diesel engine requires a much higher starting torque, especially in cold weather.
| References | 32 |
|---|---|
| Capacity | 45 – 225 Ah |
| Cold cranking | 300 – 1400 A (EN) |
| Voltage | 12 V |
| Technology | PLOMO/ACIDO |
In industrial vehicles, it is common to install two batteries in series to obtain 24 V. Always replace both at the same time and with the same reference: mixing a new battery with a worn one causes the old one to drag down the new one and shortens the life of both.
ProMotive SLI groups what was previously sold as VARTA ProMotive HD and VARTA ProMotive SHD. It is the reference starting battery for trucks, buses, and agricultural machinery.
The VARTA ProMotive SLI. Both lines were unified in the 2026 portfolio; the equivalence is established by capacity and cranking current.
Because the electrical system works at 24 volts and is obtained by connecting two 12 V batteries in series. Both should always be replaced at the same time and with the same reference.
It is not recommended. In a series connection, the more worn battery limits the set and drags the new one, thus shortening the life of both.
The construction against vibration —anchored plates and reinforced casing— and a much higher cranking current, necessary to start a large displacement diesel engine in cold weather.
