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GE Medical Systems Information Technologies
Protecting Your Battery Investment KEEPING YOUR BATTERY PACK READY FOR RELIABLE SERVICE The following information pertains to the Sm-Energy Model SM201-003 rechargeable battery only. For earlier versions of the battery, please reference the monitor service manual.
The monitor plays a key part in delivering patient care, and it is important that you can count on your battery. To maintain the life and performance of your batteries, the battery requires regular care and proper use and storage. To get the best performance from your battery, GE Medical Systems Information Technologies recommends the following care. Understanding Battery Basics The battery pack consists of nine Lithium-Ion (Li-Ion) cells with an integrated electronic fuel gauge and safety protection circuitry. There are three keys to understanding the basics of Lithium-Ion battery technology:
2. The key characteristic of the battery is its full charge capacity – the amount of charge the battery can store and deliver to the monitor at a specific point in time. Over time, Li-Ion cells permanently lose the charge capacity they had when they were new, resulting in a decrease in battery runtime from when the battery was new, even when the battery is charged to full capacity. 3. The capacity of Li-Ion cells degrades significantly at higher temperatures. In addition, the cells self-discharge twice as fast for every 10°C (18°F) rise in temperature. To get the longest life and best performance from the battery, keep your monitor away from heat sources. Do not place it near a heat vent or near heat-generating equipment, such as computer monitors. Avoid placing it in corners where the airflow may be restricted.
1. The Li-Ion battery pack will discharge on its own, even if not installed in a monitor. This is because the battery pack draws electric current to power its own integrated electronics, and because the Li-Ion cells naturally self-discharge.
Note: Standard warranty on batteries is 90 days from date of installation.
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Conditioning Your Battery Pack GE recommends conditioning batteries every six months to recalibrate the electronic fuel gauge. Conditioning consists of an uninterrupted "charge-discharge-charge" cycle. We recommend that you condition your batteries with an external battery charger.
• Remaining Charge Capacity: This is the amount of full charge capacity currently remaining in the battery. This is represented as a percent of full charge capacity. At any point, the battery may not be charged to the highest level possible for that battery. When the battery is charged to the maximum level, remaining charge capacity is equal to full charge capacity. The battery icon in the lower right corner of the monitor display acts as an electronic fuel gauge that shows the current state of charge of the battery. A new battery that has 100 percent design capacity, and is charged to 100 percent of this capacity, will last approximately three hours.
Cadex External Battery Charger
If you choose, you can perform the conditioning cycle while the batteries are in the monitor. Refer to the monitor service manual for information on conditioning our battery in the monitor. WARNING: Never condition a battery in a monitor that is connected to a patient. Know the Charge Level of the Battery There are three main characteristics of the battery's charge level: Design Capacity (DC), Full Charge Capacity (FCC) and Remaining Charge Capacity (RCC). • Design Capacity: This is the engineering capacity of the battery cells when the battery is new. • Full Charge Capacity: This is the maximum amount of charge the battery can store and deliver to the monitor at any given point in time. This is represented as a percent of design capacity. When the battery is new, full charge capacity is equal to design capacity.
Figure 1. An icon fully outlined with solid lines and completely filled indicates a new battery, fully charged to a minimum of the battery’s design capacity. Run time: approx. three hours. (Figure 1)
Figure 2. The dotted portion of the icon outline shows that the battery pack has lost 20 percent of its design capacity. The solid-outline portion is filled in, showing that the battery is charged to 100 percent FCC. Run time: approx. 2.5 hours. (Figure 2)
Figure 3. The dotted portion of the icon outline shows that the battery pack has lost 20 percent of its design capacity. The solid-outline portion is half filled in, showing that the battery is charged to only 50 percent of available capacity. Run time: approx. 1.4 hours. (Figure 3)
As design capacity and full charge capacity decline, you will experience a decrease in the approximate run time of the battery when fully charged. Store Your Battery Pack Properly Proper storage is another way that you can ensure the longest possible life from your batteries. We recommend that you store battery packs outside the monitor at 20° to 25°C (68° to 77° F) and recharge your batteries at least every six months. It is important to note that this battery was designed for use in a transport situation. Because of its design, if your battery is stored in the monitor but not transported on a regular basis, your battery may last less than 12 months. In this situation, we recommend you take the batteries out the of monitor and store these batteries nearby until needed for transport. Wake Up Your Battery Pack Storing batteries for an extended time without charging will cause the battery to lose its charge and fall asleep. If this situation occurs, we recommend using an external battery charger or the internal monitor wake-up function. See the monitor service manual for details on the internal battery wake-up process.
Call For Assistance For assistance with battery care, or technical advice about any aspect of your monitoring system, contact your local sales representative or distributor, or call GE Medical Systems: • In US and Canada: 800/558-7044 • Outside US and Canada: 561/575-5000
To recycle your rechargeable battery pack, call 800/8-BATTERY (800/822-8839) or visit www.rbrc.org to find the battery collection site nearest you. The rechargeable battery pack requires either a Dash® 3000/4000 monitor version 2A or later, or a Transport Pro monitor.
For more than 100 years, healthcare providers worldwide have relied on GE Medical Systems for medical technology, services and productivity solutions. So no matter what challenges your healthcare system faces – you can always count on GE to help you deliver the highest quality healthcare. For details, please contact your GE representative today.
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