Truck battery Varta B39 12V 45Ah 300A
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Official Varta distributor · 27 years in Málaga · fitted in ~15 min, no appointment
The VARTA B39 is a commercial-vehicle lead-acid battery of 45 Ah and 300 A from the ProMotive SLI range, for lorries, buses, tractors and machinery.
Positiveon the right
Technical data table
| Brand | Varta |
|---|---|
| Reference | B39 |
| Range | ProMotive SLI |
| Voltage | 12V |
| Capacity | 45Ah |
| Cranking | 300A |
| Technology | Lead-acid |
| Dimensions | 210×175×175mm |
| Weight | 10,76kg |
- Official Varta DistributorProMotive range for commercial vehicles
- Fitted in our shopin Málaga, no appointment needed
- We confirm the part numberfrom a photo of the label
The brand
VARTA ProMotive
ProMotive is VARTA’s range for commercial vehicles: lorries, buses, tractors and machinery.
It is available in SLI, EFB and AGM technologies, depending on the vehicle’s electrical demand and use.
The range
VARTA ProMotive SLI
This is VARTA’s starter range for commercial vehicles: lorries, buses, tractors and machinery. Its construction is designed to withstand the vibration of heavy work.
It brings together what was previously sold as ProMotive HD and ProMotive SHD.
The product
Key specifications of the VARTA B39: 12 V, 45 Ah, 300 A cranking and 210×175×175 mm; it weighs 10.76 kg. The positive terminal is on the right.

Battery replacement in Málaga
A family business in Málaga since 1999 and an Official VARTA Distributor. In-shop replacement with no appointment needed and recycling of the used battery. If you run a fleet, ask us about business supply.
How do I find the equivalent for my lorry?
From the label: capacity, cranking, dimensions, terminal type and positive terminal side. Send us a photo on WhatsApp and we will confirm the part number.
My lorry is 24 V – how many do I need?
24 V lorries usually have two 12 V batteries in series. It is recommended to replace both at the same time and with identical ones.
Which side is the positive terminal on?
The positive terminal is on the right, looking at the battery from the front with the terminals towards you.