Tudor TG1206 · Truck battery 12V 120Ah 680A
Specifications
| Brand | TUDOR |
|---|---|
| Part number | TG1206 |
| Voltage (V) | 12 |
| Capacity (C20) | 120Ah (c20) |
| Technology | Flooded |
| Length | 510.00 mm |
| Width | 175.00 mm |
| Height | 225.00 mm |
| Weight | 31.80 Kgs |
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Polarity: positive on the right. Check it matches your current battery before buying.
Tudor TG1206 12V 120Ah 680A is a professional battery for heavy commercial vehicles. Withstands constant chassis vibration, supports long cold-engine cranks and keeps auxiliary services running (tachograph, heater, refrigeration, GPS) during driver's mandatory rest stops.
Why this truck battery?
- True Heavy Dutybuilt for intensive professional use
- Long cold-diesel cranksreliable even in extreme cold
- Powers services at idletachograph, heater and lights with engine off
Voltage
12 V
Capacity
120 Ah
Cold cranking
680 A
Dimensions
510×175×225 mm
Technology
Lead-acid
Polarity
Positive on the right
Weight
31,8 kg
Model
TUDOR START PRO (HD)
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Truck battery Tudor TG1206 Start PRO (Hd) 120Ah 680A 12V
12VVoltage
120AhCapacity
680ACold cranking
31.80kgWeight
With 120 Ah and 680 A of cold cranking current (EN), the Tudor TG1206 from the Start PRO (Hd) range is built for professional use in trucks, buses, tractors and heavy machinery. It measures 510 × 175 × 225 mm and the positive terminal on the right, the format sought by anyone replacing a 120 Ah battery in trucks.
- Heavy Duty construction for intensive professional use.
- Conventional lead-acid: the most proven and economical technology.
- Designed for 24 V installations with two batteries in series.
- Powerful cold cranking for large-displacement diesel engines.
What the Tudor TG1206 is for
With 120 Ah, the Tudor TG1206 cranks large-displacement diesel engines in the cold and powers tachograph, fridge and heater during rest stops. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 31.80 kg, EN taper post terminals and B3 hold-down.
Dimensions, polarity and mounting
The Tudor TG1206 is made in the 510 × 175 × 225 mm format and weighs 31.80 kg. The positive terminal on the right decides which side the cables end up on: it is the detail that causes most buying mistakes, so check it before ordering. It uses a B3 hold-down and EN taper post terminals, the system that anchors and connects it in the vehicle. For a direct replacement, the current battery tray must accept these dimensions and the same terminal layout; otherwise adapters will be needed or the hold-down will change.
What Tudor does differently
Tudor has made batteries in Spain for more than a century and remains one of the brands most trusted by Spanish workshops for reliability and value. All the Tudor batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.
The Tudor TG1206: Start PRO (Hd) range and conventional lead-acid technology
The Start PRO (Hd) is the Tudor range the TG1206 belongs to: it shares the same construction and quality criteria with the rest of the series, and varies in capacity and format to suit each vehicle.
Conventional lead-acid is the benchmark against which other technologies are compared: good cranking current, great tolerance to alternator charging and the best price per amp-hour.
How to make it last longer
Keep the terminals clean and tight and the battery firmly secured against chassis vibration. During rest stops with active loads, avoid repeated deep discharges: they shorten the life of any starter battery.
Manufacturer's warranty
The Tudor TG1206 comes with the manufacturer's official warranty against manufacturing defects. An important note for commercial vehicles: most trucks use two batteries connected in series (24 V installation). If you replace only one, the new battery works alongside the old one, which has already lost capacity; that imbalance shortens its life and the manufacturer may treat it as misuse. Always replace both at the same time.
Shipping, delivery and returns
Same-day dispatch from our warehouse for in-stock orders placed before 6:00 pm: 24-48 working hours in mainland Spain and Portugal, 3 to 5 days in the islands and the rest of Europe. Returns are accepted for 14 days if the battery has not been used (free collection on the Iberian mainland). You will receive tracking by email.
BCOM-TUDOR-TG1206
Data sheet
- Brand
- TUDOR
- Reference
- TG1206
- Model
- TUDOR START PRO (HD)
- Voltage (V)
- 12
- Length
- 510.00 mm
- Width
- 175.00 mm
- Height
- 225.00 mm
- Weight
- 31.80 Kgs
- Technology
- Flooded
- EAN
- 3661024056830
- Terminal layout
- Positive terminal on the right
- Terminal type
- EN taper post
- Hold-down
- B3
- Cold cranking amps (EN)
- 680A
- Capacity (C20)
- 120Ah (c20)
- Case type
- D08
Specific References
- EAN13
- 3661024056830
- MPN
- TG1206
Codes and references Tudor TG1206
| Brand | Tudor · see all batteries Tudor |
|---|---|
| Manufacturer range | TUDOR START PRO (HD) |
| Manufacturer reference (MPN) | TG1206 |
| EAN-13 barcode | 3661024056830 |
| Dimensions (length × width × height) | 510 × 175 × 225 mm (510x175x225) |
Comparison: Tudor TG1206 vs equivalents
The Tudor TG1206 is interchangeable with these equivalent references: TG1406 (Tudor), EG1406 (Exide).
| Product | Specifications | Technology | Price |
|---|---|---|---|
Tudor
TG1206
This battery
|
12V 120Ah 680A | Lead-acid | |
Tudor
TG1406
|
12V 140Ah 800A | Lead-acid | €193.90 |
Exide
EG1406
|
12V 140Ah 800A | Lead-acid | €136.50 |
Equivalences verified by our technical team: same dimensions, polarity, capacity and CCA. Official manufacturer warranty on every option.
Recommended accessories
How to change the battery
Guide to replace a truck battery in 30-60 minutes. Truck batteries weigh 25-50 kg — we recommend working in pairs and using a carrying strap.
Step 1. Prepare the vehicle
Park on a flat surface, switch off the engine and remove the key. Make sure all lights and electrical accessories are off. Wait 1-2 minutes before starting.
Step 2. Locate the battery
Open the bonnet. The battery is usually in the engine bay, but in many modern cars it may be in the boot or under the passenger seat. Check the manual if you cannot find it.
Step 3. Disconnect the negative (−) terminal
Use the 10 mm wrench to loosen the negative cable nut (black, marked −) and remove the cable from the post. Move it aside so it cannot touch any bodywork.
Step 4. Disconnect the positive (+) terminal
Repeat with the positive cable (red, marked +). Important: never let a terminal touch metal of the car while the other is still connected.
Step 5. Remove the old battery (two people)
Loosen the bottom hold-down clamp. Truck batteries weigh 25-50 kg — lift in pairs with gloves and a carrying strap. Forcing the lift alone risks back injury.
Step 6. Install the new battery
Place the battery in the same orientation as the old one (positive terminal on the same side). Tighten the hold-down clamp firmly.
Step 7. Connect the cables
Connect the positive (+) terminal first, then the negative (−). Tighten the nuts with the wrench until each terminal does not move. Apply anti-spark grease if you have any.
Step 8. Verify the engine starts
Close the bonnet. Start the engine to confirm everything works. On cars with Start-Stop or a BMS, you may need to register the battery via OBD so the alternator applies the correct charging profile.
Frequently asked questions
How is the Tudor TG1206 battery installed in the vehicle?
In most trucks it fits in 15-30 minutes with a 10 mm wrench; if the battery is under the seat or in the boot the time can double. See the step-by-step guide on this page. Quick summary: 1) switch off the engine and remove the key; 2) locate the original battery (engine bay, boot or under seat); 3) disconnect the negative (−) terminal first, then the positive (+); 4) loosen the hold-down clamp and remove the old battery; 5) fit the new one in the same orientation — match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (−). On trucks with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile.
How long does the Tudor TG1206 battery last?
Expected lifespan of the Tudor TG1206 is 4 to 7 years in regular use (depends on technology and climate). In cold regions it drops slightly due to cold-start stress; in very hot regions it also drops because of electrolyte evaporation. To extend its life: avoid deep discharges (headlights on with engine off), have the alternator checked yearly, and keep the battery clean and properly secured.
What are the measurements of the TG1206 model?
Dimensions (length × width × height) are 510×175×225 mm — also written as 510x175x225 mm — following the European DIN standard. Always measure the space in your truck before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals.
Will the Tudor TG1206 battery fit my truck?
Three options to confirm: 1) enter your number plate in the finder (DGT/DVLA/KBA auto-detect your model and engine); 2) check the "Compatible vehicles" tab on this page, where we list every vehicle verified by our technical team; 3) if you cannot find your model, message us on WhatsApp with brand, model, engine and year — we reply during business hours (Mon–Fri 10:00–13:30 and 16:40–18:00 (Spanish time, CET)). The TG1206 typically fits a wide range of European vehicles thanks to its standard DIN case format.
Which batteries are equivalent to the Tudor TG1206?
Directly interchangeable batteries (same dimensions, same polarity, same Ah and CCA) are the OEM equivalents from leading brands: Bosch, Tudor, Exide and, depending on the model, Banner or Yuasa. Exact equivalence depends on technology — an EFB cannot be replaced with a conventional battery in Start-Stop trucks. See the "Equivalents" section to view recommended options at the same performance level.
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