Pairing the right battery with your BLDC integrated e‑axle is critical for towing performance. For industrial tow tractors operating 8‑hour shifts, you have two choices: lithium or lead‑acid.
Lithium (LiFePO₄) – the clear winner
Lithium delivers high discharge rates (150A+ continuous) that match the instant torque demand of BLDC motors. A 73.6V or 102.4V pack (122Ah–230Ah) provides consistent voltage throughout the shift, unlike lead‑acid which sags under load. Lithium charges in 2–3 hours, works opportunity charging, and lasts 2000+ cycles – perfect for multi‑shift operations.
Why voltage matters
For light‑duty tow tractors (≤1.5 tons towing), 51.2V is sufficient. Medium‑duty (2–3 tons) needs 73.6V. Heavy‑duty (4–5 tons) requires 102.4V to keep current lower and heat manageable. Always match your battery voltage to your BLDC motor controller’s rated voltage.
Avoid lead‑acid
Lead‑acid is cheaper upfront but suffers from short cycle life (300–500), long charging (8+ hours), and poor performance under high discharge – leading to voltage drops and reduced towing power. The integrated BMS in our lithium packs protects against over‑current and overheating, ensuring safe, reliable operation.
Choose lithium for longer runtime, faster charging, and true compatibility with your BLDC integrated axle system. Your tow tractors will thank you every shift.