Custom battery packs, engineered for your application
Packs from 12V to 800V+ in any chemistry — LFP, NMC, NCA, LTO, and sodium-ion. UL 9540, IEC 62619, UN 38.3, and DOT certification handled in-house.
From 12V drop-ins to 800V+ traction packs
Every pack is built around the voltage, current, and duty cycle your product actually runs.
Drop-in lead-acid replacements, small mobility platforms, and consumer equipment. Same form factor and terminal layout as the legacy battery, two to three times the cycle life.
Motive power, industrial equipment, and commercial ESS. Modular architectures that scale capacity and C-rate to match your duty cycle without redesigning the whole pack.
Transportation, utility-scale ESS, and fast-charging applications. High-voltage isolation, contactor management, and pre-charge circuits engineered for safety and serviceability.
Five production chemistries, matched to your application
Pacific Battery Company is chemistry-agnostic. Chemistry is chosen on cycle life, energy density, safety, cost, and temperature range — not on what's on the shelf.
Lithium Iron Phosphate. Inherently safe chemistry with 4,000–6,000+ cycles at 80% DOD and 160–180 Wh/kg. The workhorse for stationary storage and motive power where longevity and safety beat weight.
Nickel Manganese Cobalt. 200–270 Wh/kg at 1,000–2,000 cycles. The right call when weight and volume matter — e-mobility, portable equipment, and space-constrained industrial designs.
Nickel Cobalt Aluminum. 250–300 Wh/kg with high power capability for high-performance applications. Used where maximum energy density is the non-negotiable design constraint.
Lithium Titanate. 10,000–20,000+ cycles, charge rates above 6C, and reliable operation down to −30 °C. The call when the duty is defined by power, fast charge, or extreme temperature rather than energy. Lower energy density (60–80 Wh/kg) is the trade. See LTO battery packs.
30% lower material cost than lithium. No lithium or cobalt in the chemistry — abundant sodium instead. Production-ready since 2024 and a strong fit for cost-sensitive stationary storage.
Three systems, fully integrated
Cells are the commodity. What we build around them is the product.
Active balancing for maximum usable capacity. Multi-layer hardware and software protection — over-voltage, under-voltage, over-current, short circuit, over-temperature. CAN, RS485, Modbus, and Ethernet interfaces standard.
Liquid or air cooling depending on C-rate, ambient range, and pack density. Cell-level NTC sensors feed the BMS for tight thermal control across charge, discharge, and idle states.
UL 9540, UL 9540A test report, UL 1973, IEC 62619, UN 38.3, and DOT Class 9, all handled in-house. Test planning, lab coordination, and final documentation delivered as part of the program.
4 to 8 weeks from spec to prototype
Engineering samples in 4 to 8 weeks, built to production-intent specs. Production lead times run 8 to 12 weeks from PO.
Custom battery pack questions, answered
What engineering and procurement teams ask before a first program.
Which battery chemistry should I choose for my application?
LFP when cycle life and safety outrank weight. NMC or NCA when energy density is the binding constraint. LTO when the duty is defined by power, fast charge, or extreme temperature rather than energy. Sodium-ion when material cost dominates and the application is stationary. Send the duty cycle and PBC returns a chemistry recommendation with the reasoning.
What voltage range can a custom battery pack cover?
12V to 800V+. Low voltage (12V–60V) covers drop-in lead-acid replacements and small mobility platforms. Standard voltage (48V–400V) covers motive power, industrial equipment, and commercial ESS. High voltage (400V–800V+) covers transportation, utility-scale ESS, and fast-charging applications.
Do custom packs include a BMS and thermal management?
Yes. Every custom pack is engineered with an integrated battery management system and active or passive thermal management sized to the duty cycle, along with a ruggedized enclosure designed to the mechanical and environmental requirements of the application.
What certifications can a custom battery pack carry?
UL 9540, UL 9540A test report, UL 1973, IEC 62619, UN 38.3, and DOT Class 9. Test planning, lab coordination, and final documentation are delivered as part of the program rather than left to the customer.
How long does a custom battery pack take?
Engineering samples run 4 to 8 weeks from spec, built to production-intent specifications. Production lead times run 8 to 12 weeks from PO.
Tell us what you need to build.
Send voltage, capacity, form factor, and duty cycle. Back comes a chemistry recommendation, a sample timeline, and a landed-cost number.