12VVolts
146AhAmp-hours at C20
48 kgBattery weight
In short: For boats and motorhomes there is the Trojan T1275-AES, carrying a 146Ah 12V rating. Before anything else, measure the space: the case comes to 329 × 179 × 278 mm.
Specifications table
BrandTrojan
Part numberT1275-AES
Product lineTROJAN AES
Suitsboats and motorhomes
Volts12V
Amp-hours at C20146Ah
Watt-hours1870 Wh
TechnologyAGM
Size L × W × H329 × 179 × 278 mm
Battery weight48 kg
Fitting and everyday care
A caravan with a motor mover asks for big bursts of current. Keep a battery monitor reset after fitting new batteries. Storing a bank half empty in the cold costs capacity that never comes back.
Trojan T1275-AES: what it is and who it suits
Rated 146Ah 12V, the Trojan T1275-AES serves boats and motorhomes. Battery boxes on boats often leave little room, so dimensions matter. Plenty of owners now pick batteries online while planning the winter refit.
Most batteries for boats and motorhomes land close to 146Ah, and this one does too.
Common questions about the Trojan T1275-AES
Can I use my usual charger with this battery?
Being a AGM battery, it needs charging voltages suited to that chemistry. Smart chargers with a selectable mode take care of this automatically.
Which product line does the Trojan T1275-AES belong to?
Yes: it is part of TROJAN AES. Other members of that family use the same technology.
Will the Trojan T1275-AES replace my old battery?
The safest test is a direct comparison: same voltage, same or slightly higher capacity, same case size and the same terminal orientation. Your owner's manual usually lists the original values.
Before you order: a quick checklist
- ✓ Make room for 329 × 179 × 278 mm, including clearance above the posts.
- ✓ Stored energy reserve: 146Ah. Going much lower than your current battery can leave you short on cold mornings or long stops.
- ✓ As a AGM battery it needs matching charge settings in the alternator, charger or solar regulator.
See also
A photo of the old label plus this page is all it takes to order with confidence at baterias.online. Recycling the old battery is easy at most tips and garages.
How AGM batteries work and how to look after them
AGM stands for absorbent glass mat, a fancy name for a very tidy way of storing acid. Cold starts are easier with AGM thanks to strong current delivery. Charge an AGM battery in a cool, ventilated place.
