12VVolts
137AhCapacity (C20)
37.4 kgWeighs
At a glance: Here is the Q-Battery 12SEM-137 in one line: boats and motorhomes, 137Ah 12V. Terminals are of the A-Pole type, so make sure your clamps suit them.
Practical advice for boats and motorhomes
Motorhomes with roof solar may still run short in November when the days are short. Take the main leads from opposite corners of the bank so every battery shares the load. Corroded terminals can make a healthy battery seem weak.
Specifications table
ManufacturerQ-Battery
Part number12SEM-137
SeriesSEMITRACTION BATTERY
Used forboats and motorhomes
Volts12V
Capacity (C20)137Ah
ChemistryLead-acid
Outer measurements513 × 189 × 223 mm
Weighs37.4 kg
Layout3
Terminal typeA-Pole
About the technology: lead-acid
Plates made of lead and lead dioxide react with the acid. Older cars without stop-start systems are happy with a standard lead-acid battery. Most basic chargers already suit a wet-cell battery perfectly well.
Other options with identical dimensions
Same format, different makers: these alternatives match the Q-Battery 12SEM-137 in size and layout.
Exide ET950Exide EN900Exide EP1200Exide ER660Varta LED140
Answers before you buy
Can you give me the size and weight of this battery?
At 513 × 189 × 223 mm and 37.4 kg, it needs a tray of that size and a careful lift.
What are the voltage and capacity of this model?
Yes, if they are identical. Two 12V units of 137Ah in series give double the voltage; in parallel they give double the capacity at 12V.
Is the Q-Battery 12SEM-137 AGM, EFB, gel or lead-acid?
Being a lead-acid battery, it needs charging voltages suited to that chemistry. Smart chargers with a selectable mode take care of this automatically.
What connector type is fitted to this battery?
Terminal type: A-Pole. Compare with the posts or tabs on your current battery.
Q-Battery 12SEM-137 for boats and motorhomes
If the logbook says Q-Battery 12SEM-137, here are the numbers for the replacement. Dual-purpose batteries can start a small engine and run the cabin. With the logbook open beside you, finding the Q-Battery 12SEM-137 at baterias.online is straightforward.
Most batteries for boats and motorhomes land close to 137Ah, and this one does too.
Related products and ranges
Codes matching and measurements agreeing? The Q-Battery 12SEM-137 can go straight into your basket at baterias.online. Keep the radio code handy before disconnecting the old battery.
Before you order: a quick checklist
- ✓ Built with lead-acid technology: if your vehicle or system was set up for another chemistry, check the charging settings first.
- ✓ Make room for 513 × 189 × 223 mm, including clearance above the posts.
- ✓ Do not go far below your old battery's capacity; this one has 137Ah.
