What the cold does to a starter battery
As temperature falls, the chemical reactions inside any battery slow down. In a lead-acid battery the effect is severe, and it compounds with age and sulphation: a battery that started the car all summer can fail on the first frosty morning. The engine, meanwhile, needs its highest cranking torque of the year.
Sodium-ion cells keep their discharge curve much flatter at low temperature. Our core 30Ah starter model is rated at 90% discharge at −20°C and 80% at −40°C — figures a lead-acid battery cannot approach.
Which model for cold climates
The three classes step up by capacity — 30Ah, 50Ah and 75Ah — and each is a separate model with its own figures, so the choice between them is made on those figures. The 30Ah carries the cold ratings above; the 75Ah runs a −40°C to 85°C operating window with the same 6,000-plus cycle life; the 50Ah class sits between them in the range, on its 230×175×181mm case size. All three are sodium-ion units, so none of them asks for acid maintenance.
- 12V 30Ah — 90% discharge at −20°C, 80% at −40°C
- 12V 50Ah — the mid-capacity class
- 12V 75Ah — 6,000+ cycles, custom voltages to 48V
- LP12 series — motorcycle starter batteries
Specifying for your coldest morning
Do not specify a cold-climate programme from an average winter temperature — specify it from the coldest morning your customers actually face, after an overnight soak, on a battery that has done short trips all week. That is the duty that decides whether a starter battery earns its place, and it is the test we would run in your position.
When you inquire, tell us the lowest temperature in your market, the vehicle mix, and how the vehicles are used between starts. The 30Ah's cold ratings are the benchmark the rest of the range is chosen against — send those three things and the quotation is worked against them for the season.
Ordering for a cold market
If your market sees temperatures below −20°C, say so in the inquiry, and the quotation will be worked against your vehicle parc for the season.
Wholesale inquiries
Tell us the model, your quantity and your market — we reply with a quotation and lead time.