Medical Batteries

Medical Batteries for a Wide Range of Devices

Our medical battery catalog covers equipment found across hospitals, clinics, emergency response, and home care environments. Here's a look at the major device categories we support:

• AEDs and defibrillators — Replacement and FDA-approved batteries for life-safety devices from Physio-Control, ZOLL, Cardiac Science, Defibtech, and Philips HeartStart, including non-rechargeable lithium packs designed for long standby life.
• Patient monitors and vital sign monitors — Compatible battery packs for Philips IntelliVue, GE Carescape, Mindray BeneView and BeneVision, Drager Infinity, Masimo Root, and many more bedside monitoring systems.
• Ventilators and respiratory equipment — Replacement batteries for Philips Respironics, ResMed, Drager Oxylog, Maquet Servo, Hamilton, and Philips Trilogy ventilators.
• Infusion and syringe pumps — Batteries for the Medfusion 4000, Alaris 8000 and 8100, QCore Sapphire, and similar medication delivery systems.
• Pulse oximeters — Rechargeable replacement packs for Masimo Radical, Rad 97, and other portable and bedside oximeters.
• Diagnostic instruments — Batteries for Welch Allyn, Heine, KaWe, and Kowa diagnostic tools including ophthalmoscopes, otoscopes, laryngoscopes, and retinoscopes.
• Surgical and specialty equipment — Options for Zimmer ATS tourniquets, Stryker Power-Pro XT systems, Verathon bladder scanners, and vein finders.
• EKG and ECG recorders — Replacement batteries for GE, Nihon Kohden Cardiolife, Philips PageWriter, and Schiller ECG machines.
• Hospital communication devices — Batteries for Vocera badge systems used in clinical communication.

Don't see your device listed? Reach out to our team and we'll help you track down what you need.

Medical Battery Chemistries Explained

Not all medical batteries are built the same. The chemistry inside a battery affects its runtime, charge behavior, and suitability for different types of equipment. Here's a plain-language breakdown of the most common types in our catalog:

• Lithium-Ion (Li-Ion) — The most common rechargeable chemistry in modern medical equipment. Li-Ion batteries are lightweight, hold a charge well between uses, and offer high energy density relative to their size. They're widely used in patient monitors, ventilators, infusion pumps, and portable diagnostic tools.
• Nickel-Metal Hydride (NiMH) — A reliable rechargeable chemistry used across a broad range of hospital and clinical devices. NiMH batteries don't suffer from the memory effect associated with older NiCd batteries, making them well suited for equipment that charges frequently or on an irregular schedule.
• Nickel-Cadmium (NiCd) — An older rechargeable chemistry still found in legacy medical equipment, including a number of Welch Allyn and similar diagnostic devices. Durable and dependable when properly maintained, though older equipment may show reduced performance if batteries are not fully discharged before recharging.
• Sealed Lead Acid (SLA) — Typically found in larger or stationary medical equipment. SLA batteries offer solid capacity at a lower cost and have a long service life when kept on a proper maintenance charge.
• Primary Lithium (non-rechargeable) — Used in AEDs and other life-safety devices where a long standby life and consistent performance are essential. These batteries are designed to sit ready for years and are replaced on a schedule rather than recharged.

Every listing in our catalog includes the battery chemistry and full specifications, so matching the right type to your device is straightforward.

OEM vs. Replacement Medical Batteries: What's the Difference?

When it's time to replace a battery in your medical device, you'll generally have two options: the original equipment manufacturer (OEM) battery or a compatible replacement.

OEM batteries come from the device manufacturer and are guaranteed to match the original specifications. They're a natural choice when you're working within the manufacturer's service guidelines or when warranty considerations are a factor.

Compatible replacement batteries are produced by specialized battery manufacturers to meet or exceed the original specs. Many of the replacement options in our catalog come from established names like Cameron Sino, Energy+, and Unipower — companies that focus specifically on high-quality aftermarket batteries. For the majority of applications, a quality replacement performs comparably to the OEM version, often at a more accessible price.

If you're weighing your options or have a specific compliance requirement to consider, our team is happy to help you think it through. Contact us here.

Frequently Asked Questions

How do I find the right battery for my medical device?

The most reliable starting point is your device's model number or the part number printed on the existing battery. Most listings in our catalog include the original manufacturer part number, making it easy to confirm compatibility before ordering. If you're unsure, our team can help — just reach out with your device model and we'll point you in the right direction.

Are replacement (aftermarket) medical batteries safe to use?

Quality replacement batteries built to the original specifications are safe for standard use. Requirements can vary based on the device, your clinical setting, and any regulatory or facility protocols that apply. When compliance or patient safety is a consideration, we recommend consulting your biomedical engineering team or the device manufacturer's documentation alongside your purchasing decision.

What's the difference between rechargeable and non-rechargeable medical batteries?

Rechargeable batteries — such as Li-Ion and NiMH — are designed to be charged and used repeatedly over their service life. They're the standard in most powered medical devices. Non-rechargeable (primary) batteries, like the lithium cells used in many AEDs, are built for a single use cycle and are replaced when depleted or when they reach the manufacturer's expiration date. AED batteries in particular are typically date-coded and should be swapped out on a defined schedule, regardless of whether the device has been used.

How long do medical batteries typically last?

Service life varies based on the device, how often it's used, and how the battery is stored and maintained. Most rechargeable batteries support hundreds of charge cycles before capacity begins to noticeably degrade. Primary AED batteries often remain viable for 2 to 5 years in standby mode. Each product listing includes warranty information to give you a baseline for expected performance.

Can I return a battery if it doesn't fit my device?

Please visit our returns policy page for full details. If you have questions about an order or need help before purchasing, our customer service team is ready to assist.