Group 27, 690 CCA, Flooded. Group 27 is physically larger than Group 24/35 and provides more capacity — a popular choice for trucks with snow plows, winches, or auxiliary equipment, as well as RV starting batteries. Apex Auto Spare Parts stocks Group 27 batteries ready to ship across Canada and the US.
Quick Specs
| BCI Group Size | 27 |
| Cold Cranking Amps (CCA) | 690 |
| Voltage | 12V |
| Construction | Flooded (wet cell) |
| Dimensions | 12.06 in x 6.81 in x 8.88 in (306 x 173 x 225 mm) |
| Terminal Layout | Top post |
| Typical Lifespan in Canada | 3-5 years |
Vehicle & Application Compatibility
- Trucks with snow plow setups requiring extra reserve capacity
- RV and motorhome starting batteries (chassis battery, not house battery)
- Vehicles with substantial aftermarket electrical accessories
- Some larger SUVs and vans specify Group 27 from factory
💡 Upgrading from Group 24? Group 27 is larger — measure your battery tray depth before ordering. If your tray is sized for Group 24/35, Group 27 may not fit without modification.
Group 27 vs Group 24 vs Group 31
| Group 24 | 10.25 x 6.81 x 8.88 in — smaller, standard cars/light trucks |
| Group 27 (this listing) | 12.06 x 6.81 x 8.88 in — mid-size, extra capacity |
| Group 31 | 13.00 x 6.81 x 9.44 in — largest, heavy duty/diesel |
Maintenance Tips for Flooded Batteries
- Check electrolyte level periodically if caps are removable
- Keep terminals clean — apply dielectric grease or terminal protectant
- Avoid deep discharges — flooded batteries degrade faster than AGM when fully drained
- Test annually after year 2, especially before winter
Frequently Asked Questions
Can I put a Group 27 battery where a Group 24 goes?
Only if your battery tray and hold-down bracket can accommodate the larger Group 27 dimensions (about 1.75 in longer). Measure first or call us to discuss.
Is Group 27 good for plow trucks?
Yes — the extra capacity helps support the additional electrical draw from plow lights, solenoids, and hydraulics, especially during winter idling.
What’s the difference between starting and deep-cycle batteries?
Starting batteries (like this Group 27) deliver high current briefly to start the engine. Deep-cycle batteries discharge slowly over time for accessories — different internal construction. This is a starting battery.
Do you have AGM in Group 27?
Group 27 AGM is less common but available on request — call us to check current stock.
Not sure if this battery fits your truck?
Call or WhatsApp us with your year, make & model — we confirm the correct group size and CCA before you order.
📞 +1 (512) 236-5489 💬 WhatsAppQuestion:
- Can I put a Group 27 battery where a Group 24 goes?
- Is Group 27 good for plow trucks?
- What’s the difference between starting and deep-cycle batteries?
- Do you have AGM in Group 27?
- What vehicles use a Group 27 battery as standard?
- Is 690 CCA enough for a diesel truck?
- Can I use a Group 27 battery for my RV’s chassis battery?
- How long does a Group 27 battery last with heavy accessory use?
- Will a Group 27 battery fit in my truck’s battery tray?
- What size cables do I need for a Group 27 battery?
