SurePower and SurePower II Lithium Ion Defibrillator Battery Update Jan 2012

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should be recalibrated every 1 or 2 months.

Notes:

1. The SurePower battery cannot be recalibrated in any platform (E Series, R Series, X

Series, Propaq, or AED Pro). The platforms do not drain the battery low enough to

perform a recalibration. The reason is the battery does not fully deplete when “Replace

Battery” is indicated in order to have a small reserve left so if the battery is

unintentionally not recharged right away, no battery damage will result from too low a

cell voltage.

Recharging must occur within:

- 45 days maximum for E Series

- 30 days maximum for R Series and AED Pro

- 14 days maximum for Propaq and X Series

2. The SurePower Battery and Charger were intended to automatically recalibrate the

SurePower battery when needed. Unfortunately this feature is not always reliable. The

battery software was been updated to fix this problem but most of the SurePower

batteries currently in the field will have this potential recalibration issue. Therefore to

insure a recalibration takes place, the Manual Test button on the SurePower Charger

must be pressed.

Revision A of the SurePower Battery Pack Guide (9650-0536-01) is incorrect on page 5:

• Draining a fully charged SurePower battery in the defib will NOT recalibrate the battery.

This was corrected in Revision B of the SurePower Battery Pack Guide.

Run Time LED Operation

The battery will display run time (per the Run Time LED display) automatically whenever

current is flowing either charge or discharge except for X Series and Propaq which will

always require a button press to display the green Run Time LED’s.

During discharge, Run Time is determined from the actual current being drawn from the

battery. If no load current is flowing (or if the battery is not in a platform) and the Display

button is pressed, the run time displayed is based on a default discharge current value. The

default current is 2A for SurePower and 1.2A for SurePower II batteries.

Notes:

1. One could see two Run Time LED’s illuminated, for example, via a Display button press

but then see three Run Time LED’s when the battery is being used in a platform. This

will be due to the platform load current being less than the default value. Again the Run

Time display will always show remaining run time based on the actual load current

flowing when powering any platform.

2. With battery software versions V1.80 (SurePower) and V1.50 (Propaq/SurePower II),

the battery will use the default current value to determine run time for the first minute of

operation to prevent incorrect Run Time indication during that first minute. This allows

time for the gas gauge Average Current value to reach its actual operational value.

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The battery LED Run Time display will activate (illuminate) within 15 seconds after the

platform is switched on except for X Series and Propaq (need to push the button on the

battery for a Run Time display).

Battery insertion into an AED Pro starts the “Battery Insertion Test” after which time the

AED Pro turns off. The battery test will not activate the SurePower battery Run Time display

but pressing the ON button of the AED Pro with a battery already installed (Green “√”

displayed) will, again within approximately 15 seconds.

Run Time that is displayed while charging is determined by the battery using the default

discharge current value so Run Time is based on the default current drain which is

conservative versus the actual platform current draw.

One blinking Run Time LED indicates less than 15 minutes of available run time. To be

safe the battery should be recharged as soon as possible.

Battery and Charger Fault Indications

Faults reported by the charger do not necessarily indicate there is a problem with the

battery. The most common cause for charger faults is a communication error between the

charger and battery with a higher occurrence with the Propaq battery because of the added

charger adapter. If a charger fault occurs, press the battery status button to determine if the

battery also has a fault and if not reinsert the battery into the charger to try charging again.

Note:

SurePower Battery software V1.50 and Propaq battery software V1.10 have a bug that

causes the charger to sometimes fault on a charge/discharge or discharge/charge transition

during a Manual Test cycle. Reinserting the battery back into the charger clears the fault

(press the Manual Test button again) and should complete successfully.

Platform “Low Battery” and “Replace Battery” Determination

All platforms use Remaining Capacity read from the battery to determine when to post “Low

Battery” or “Replace Battery”. Voltage is only used as a backup in the event

communication is lost between the battery and platform. The voltage thresholds were

chosen so the Remaining Capacity thresholds will be reached before the voltage threshold

if the battery is properly calibrated.

If a battery is depleted in the platform (i.e. used until platform shuts off) the battery must be

recharged within the time specified below in order to prevent the battery from generating a

permanent battery disable fault due to excessive low cell voltage.

Recharging must occur within:

• 45 days maximum for E Series

• 30 days maximum for R Series and AED Pro

• 14 days maximum for X Series and Propaq

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Long Term Storage of the SurePower and SurePower II Battery

If SurePower or SurePower II batteries are to be stored for >90 days:

• Do not store in the platform

• Do not store fully charged, this only accelerates aging of the battery. Batteries should

be charged till 3 Run Time LED’s are illuminated (1:00+ for SurePower, 2:00+ for

SurePower II) prior to storage or use a Conditioning Charger to recharge batteries prior

to storage.

• Storage temperature should be between +15°C and +25°C

(temperatures >+25°C increases self discharge and also accelerates battery aging)

• Recharge back to 3 Run Time LED’s every 4 months

• Do not store depleted batteries or damage will result

(the battery pack will permanently disable itself if the battery voltage decays to a

predetermined low value for safety reasons. When this occurs, the battery Fault LED

will illuminate upon a button press and the battery will generate a charger fault when

placed into a SurePower Charger for that specific battery bay only.)

Expected SurePower Battery Life

Expected cycle life of the SurePower battery is approximately 700 cycles in hospital and

EMS heavy use applications and greater than 700 cycles in light use applications. Light

versus heavy simply means the pack is ~30% drained per cycle before recharge for light

use and completely drained per cycle for heavy use. This number will change due to actual

customer usage patterns but 700 cycles is a typical number for heavy use.

A “Shift Check” protocol was tested and found not to be detrimental to the SurePower

battery (reduction of pack capacity) as was found with lead acid over extended periods.

Another difference of lithium ion cells versus lead acid is that lithium ion batteries will not

improve in capacity with repeated deep discharge cycles as with lead acid.

Lithium Ion chemistry does not suffer from “memory effect” as nickel based chemistries do.

AED Pro Disposable Battery

There are no maintenance requirements for this battery other than:

• Battery must be used prior to the “Install Before” date located on the back label

• Batteries should be stored at a temperature between +15°C and +25°C to minimize cell

self discharge

ZOLL Battery Warranty

One year warranty for all Rechargeable Batteries (SLA and Lithium) sold in the USA and

internationally.