Optima YTR-5.0: on-board battery for marine and motorhome use 66Ah 12V 845A

At a glance: In a nutshell: Optima YTR-5.0, a battery for boats and motorhomes, rated 66Ah 12V 845A. Terminal position is the detail people most often forget.

Technical figures at a glance

Installation and maintenance tips

Narrowboat crews rely on their batteries for days between charges. Take the main leads from opposite corners of the bank so every battery shares the load. Lights that dim long before bedtime point to lost capacity.

Buying the Optima YTR-5.0 online

Your boat or motorhome runs on a Optima YTR-5.0? This is its page. Capacity, size and chemistry decide whether a leisure battery suits the job, and the table lists all three. Logbook in hand, typing the code at baterias.online takes seconds.

Small and light at 66Ah, ideal where space is short. With 845A, it punches above its size on frosty mornings.

Questions and answers

Before you order: a quick checklist

• ✓ Make room for 309 × 172 × 219 mm, including clearance above the posts.
• ✓ Before ordering, glance at your current battery: this reference is positive on the right-hand side, and your cables need to reach that corner.
• ✓ The capacity rating, 66Ah, should suit the consumers you run. Lots of electrical equipment calls for the higher end.

Explore more

You will find this battery in the boats and motorhomes section of baterias.online, ready to order. Note the fitting date somewhere you will find it again.

• Compare alternatives for boats and motorhomes
• See every Optima reference

About the technology: spiral-cell AGM

Each cylinder in a spiral battery is a complete cell. Classic cars with tight battery boxes sometimes benefit from the compact spiral shape. Never open a spiral battery to add water.