Tudor TB858 · Car battery 12V 85Ah 800A
Specifications
| Brand | TUDOR |
|---|---|
| Part number | TB858 |
| Voltage (V) | 12 |
| Capacity (C20) | 85Ah (c20) |
| Cold cranking amps (EN) | 800A |
| Technology | Flooded |
| Length | 306.00 mm |
| Width | 192.00 mm |
| Height | 192.00 mm |
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Tudor TB858 12V 85Ah 800A is a ready-to-use passenger car battery, sealed and maintenance-free. Delivers the cranking amps the engine needs in cold weather and keeps stable voltage for modern car loads (ECU, sensors, climate control, infotainment).
Why this car battery?
- Original-equipment qualitywithout dealership prices
- Lasts 4 to 6 yearsbuy once instead of twice
- Real human tech supportif you have any doubts before buying
Request a quote for your Car battery Tudor TB858 12V 85Ah 800A
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Car battery Tudor TB858 Technica 85Ah 800A 12V
The Tudor TB858 car battery is rated at 12 V, 85 Ah and 800 A of cold cranking current (EN) from the Technica range, and is designed for passenger cars with conventional starting, without a Start-Stop system. It replaces the original battery without adaptation in cars with a 306 × 192 × 192 mm format: same 85 Ah capacity and the positive terminal on the left.
In short: the Tudor TB858 (85 Ah, 800 A, 306 × 192 × 192 mm, positive terminal on the left). It is a conventional battery for cars without Start-Stop: if yours has Start-Stop, it needs an EFB or AGM battery of the same size.
- Direct replacement for the original battery in size and terminals.
- Original-equipment build quality without the dealership price.
- Conventional lead-acid: the most proven and economical technology.
- Reliable cold starts, even after weeks without driving.
What the Tudor TB858 is for
With 85 Ah, the Tudor TB858 is sized for passenger cars with conventional starting, without a Start-Stop system. It is a direct replacement for the original battery as long as dimensions and terminals match. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 19.50 kg, EN taper post terminals and B1 hold-down.
Will it fit your current battery tray?
The Tudor TB858 is made in the 306 × 192 × 192 mm format and weighs 19.50 kg. The positive terminal on the left 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 B1 hold-down and EN taper post terminals, the system that anchors and connects it in the vehicle. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery.
The Tudor TB858: Technica range and conventional lead-acid technology
The Technica is the Tudor range the TB858 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.
Why choose Tudor batteries
Tudor is Spain's historic battery brand, today part of the Exide group. Its car, truck, motorcycle and leisure ranges are built with the same technology and controls as the group's original-equipment references. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty.
Official warranty
The Tudor TB858 comes with the manufacturer's official warranty against manufacturing defects; the exact period is stated in the brand's conditions. If it fails through a defect within the period, we replace it free of charge.
How to make it last longer
On batteries with filler caps, check the electrolyte level and top up only with distilled water. In normal daily use the alternator keeps the battery charged; if the car stands for weeks, a maintenance charge once a month prevents deep discharge.
Shipping, delivery and returns
Order before 6:00 pm with stock available and it leaves today: mainland Spain and Portugal receive it in 24-48 working hours, the islands and the rest of the EU in 3 to 5 days. You have 14 days to return it if it has not been installed, with free collection on the mainland, and shipment tracking by email.
Data sheet
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BrandTUDOR
-
ReferenceTB858
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ModelTUDOR TECHNICA
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Voltage (V)12
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Length306.00 mm
-
Width192.00 mm
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Height192.00 mm
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Weight19.50 Kgs
-
TechnologyFlooded
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EAN3661024057141
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Terminal layoutPositive terminal on the left
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Terminal typeEN taper post
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Hold-downB1
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Cold cranking amps (EN)800A
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Capacity (C20)85Ah (c20)
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Case typeG65
Specific References
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EAN133661024057141
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MPNTB858
Codes and references Tudor TB858
| Brand | Tudor · see all Tudor batteries |
|---|---|
| Manufacturer range | TUDOR TECHNICA |
| Manufacturer part number (MPN) | TB858 |
| EAN-13 barcode | 3661024057141 |
| Dimensions (length × width × height) | 306 × 192 × 192 mm (306x192x192) |
Recommended accessories
Fitting it yourself? Step-by-step guide to replacing the battery →
Frequently asked questions
How do I fit the TB858 model in my car?
In most cars 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 our blog. 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 — with positive on the left match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (−). On cars with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile.
How long does the Tudor TB858 battery last?
Expected lifespan of the Tudor TB858 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 dimensions of the Tudor TB858 battery?
Dimensions (length × width × height) are 306×192×192 mm — also written as 306x192x192 mm — following the European DIN standard. Always measure the space in your car before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals.
What polarity does the Tudor TB858 battery have?
Polarity: positive on the left. To identify it, place the battery in front of you with the terminals facing you and check which side the positive (+, marked with a red ring) is on. Before buying, verify the polarity matches your current battery: switching polarity forces longer cables or system reconfiguration, with short-circuit risk.
Is the TB858 valid for my vehicle?
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 TB858 typically fits a wide range of European vehicles thanks to its standard DIN case format.
Which batteries are equivalent to the Tudor TB858?
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 cars. See the "Equivalents" section to view recommended options at the same performance level.
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