Engineering Application-Specific Reliability

Our Industries

For over 40 years, Excell Battery Company has been the trusted custom battery pack designer and manufacturer for global OEMs across mission-critical sectors.

Engineered Battery Packs Built to Spec, Delivered on Schedule

Operating in demanding environments requires portable power solutions engineered specifically for high thermal tolerance, extreme shock & vibration resistance, stringent intrinsic safety standard compliance (ATEX, IECEx, HAZLOC), and prolonged lifespan. As an ISO 9001 certified manufacturer backed by Ultralife Corporation, Excell Battery brings deep domain engineering experience to ensure your procurement and design goals succeed without risk.

Specialized Industry Solutions

Oil and Gas downhole MWD LWD custom lithium battery packs

Oil & Gas Downhole & Pipeline

High-temperature primary lithium (Li-SOCl2, Li-BCX) and custom rechargeable battery packs built for MWD/LWD drilling, downhole gauges, and pipeline inspection gauge (PIG) devices operating under harsh vibration and temperatures up to 200°C.

High Temp (200°C) MWD / LWD HAZLOC / ATEX
Medical device custom lithium-ion battery packs with smart BMS

Medical Equipment & Devices

ISO 13485 compliant battery engineering featuring redundant BMS safety architectures, precision fuel gauging, and IEC 62133 / UL 2054 certifications for ventilators, surgical power tools, and portable monitoring devices.

IEC 62133 Smart BMS Redundant Safety
Industrial instrumentation smart metering lithium battery solutions

Industrial Instrumentation & IoT

Long-life, low self-discharge battery systems engineered for remote industrial sensors, smart water and gas metering, asset tracking, and field calibration tools operating in remote or rugged environments.

10+ Year Life Low Self-Discharge Industrial IoT
Small EV autonomous mobile robotics lithium battery pack design

Small EV & Autonomous Robotics

High discharge C-rate Li-ion and LiFePO4 battery modules equipped with CANbus / SMBus communications, fast-charging integration, and thermal management for AMRs, AGVs, unmanned ground vehicles, and light electric mobility.

High C-Rate CANbus / SMBus Fast Charging
Oceanographic and deep sea environmental monitoring battery packs

Environmental & Oceanography

Deep-sea oceanographic subsea battery packs and sub-zero weather monitoring systems designed for high hydrostatic pressure, ultra-wide temperature ranges (-40°C to +85°C), and extended multi-year deployments.

Subsea Pressure -40°C to +85°C Hermetic Seals
Mission critical communication tactical radio custom battery packs

Mission-Critical Communications

Ruggedized, lightweight power solutions for tactical radios, satellite terminals, emergency responder gear, and remote base stations demanding immediate high-power pulse response and high energy density.

High Energy Density Rugged Enclosure Pulse Discharge
Utilities and smart grid backup power battery packs

Utilities & Smart Grid Infrastructure

Reliable backup power supplies and automated meter reading (AMR) energy storage modules designed to perform continuously across electric, water, and gas distribution networks with zero maintenance downtime.

Zero Maintenance Grid Reliability Long Standby
Renewable energy storage and solar remote lighting battery solutions

Renewables & Remote Lighting

Deep-cycle LiFePO4 and solar-matched energy storage batteries for remote airfield lighting, off-grid navigation buoys, highway warning signals, and hybrid green power installations.

LiFePO4 Chemistry Solar Matched 3000+ Cycles
Specialized custom battery solutions for aerospace defense and niche markets

Defense & Specialized OEM Markets

Tailor-made battery architecture designed to strict military and aerospace standards, providing custom form factors, potted anti-shock construction, and UN 38.3 safe shipping certifications for niche commercial applications.

UN 38.3 Certified Custom Tooling Anti-Vibration

Why Global OEMs Partner with Excell Battery

From initial proof-of-concept through volume mass production, our fully transparent engineering lifecycle guarantees quality, regulatory compliance, and supply chain security.

ISO 9001:2015 Certified

Certified Quality Management Systems ensuring rigorous trace-ability, end-of-line testing, and controlled production processes across all facilities.

Tier-1 Cell Sourcing

Direct strategic partnerships with audited global cell leaders including Panasonic, Samsung SDI, Saft, Tadiran, LG Energy Solution, and Molicel.

Proprietary Smart BMS

In-house custom hardware & firmware engineers delivering state-of-charge (SoC), state-of-health (SoH), and multi-tier electronic safety protections.

Global Supply Security

Multiple North American manufacturing plants backed by international logistics networks for seamless B2B worldwide delivery.

Regulatory Compliance & UN 38.3 Transport Certification

We manage all testing, safety approvals, and international transport compliance requirements for your lithium battery packs — eliminating regulatory delay risks for international shipments.

ISO 9001 quality management system certification badge
Intertek testing certification mark
SWEDAC accreditation mark

Ready to Discuss Your Industry Power Requirements?

Our senior battery application engineers are available to review your design specifications, select optimal cell chemistries, and supply detailed engineering quotes for your project.