Quick answer: Quick facts on the Tudor TB858: intended for cars and vans, rated 85Ah 12V 800A. Get the size and terminal side right and you are most of the way there.
12VVolts
85AhCapacity, 20-hour rate (C20)
800AStarting power (EN)
Why choose the Tudor TB858
Plenty of second-hand cars come with a Tudor TB858 under the bonnet. Outer dimensions come to 306 × 192 × 192 mm, worth checking against your tray before anything else. A tape measure and the old label are all you need to order with confidence.
Big reserve: 85Ah is high for cars and vans.
Tudor TB858: dimensions and ratings
Installation and maintenance tips
Classic cars stored in a garage all winter are famous for flat batteries in spring. Lift the battery straight up, never by the terminals. A rotten-egg smell near the battery points to overcharging.
Care tips for lead-acid batteries
Wet lead batteries started engines long before the first motorway was built. Fleet vehicles often use flooded batteries for value. Keep a flooded battery charged in cold weather.
Will the Tudor TB858 fit?
- ✓ Rated 85Ah: check that the charger or alternator in your system can refill a battery of that capacity in reasonable time.
- ✓ Starting current 800A: look for the EN value on your old label and choose this reference only if it is equal or higher.
- ✓ Set your charger to lead-acid before the first charge.
Answers before you buy
Is this battery easy to lift?
At 19.5 kg, one person can usually manage with care; bigger batteries are easier with two.
How many cold cranking amps does this battery give?
The rated cranking current is 800A to the EN standard. This is the key figure for cold weather starting.
Explore more
Keep the code TB858 handy for next time: it makes reordering at baterias.online quick. Note the fitting date somewhere you will find it again.
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