Defibrillator batteries

ZOLL SurePower Battery Pack: troubleshooting and error codes

The ServiceForge knowledge base holds 12 documented symptoms for the ZOLL SurePower Battery Pack, with 12 ranked causes, 9 diagnostic checks with test points and expected values, and 2 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

Battery capacity below service threshold patient safety

Capacity check lights only a single LED, indicating battery capacity is at or near 60% of original capacity

Ranked causes

1. Battery capacity degradation to 60% or below original capacity (common)

First check

Check battery capacity

Test point: Battery Display button (held for at least 5 seconds)
Expected: Five LEDs light to indicate capacity equal to or close to new battery; fewer LEDs indicate decreased capacity

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Battery casing cracked or damaged patient safety

Physical damage visible on battery exterior casing

Ranked causes

1. Physical damage to battery casing (unknown)

First check

Inspect battery casing for cracks or damage

Test point: Battery exterior casing
Expected: No cracks or visible damage

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Battery fault condition prevents defibrillator operation patient safety

Battery indicates fault condition or operating state that prevents effective use of the defibrillator

Ranked causes

1. Battery malfunction or fault state (unknown)

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Battery fault detected patient safety

Fault LED lights for approximately 10 seconds after pressing Display button; runtime indicator does not display runtime for that battery

Ranked causes

1. Battery fault condition (unknown)

First check

Press Display button

Test point: Battery Display button
Expected: Fault LED lights for approximately 10 seconds

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Battery LEDs do not work

LEDs do not illuminate when Display button is pressed

Ranked causes

1. LED failure (unknown)

First check

Press Display button to test LEDs

Test point: Battery Display button and LED indicators
Expected: LEDs illuminate

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Battery over temperature during charge (Fault Code 13) caution

Battery is at or above maximum temperature for charging (140°F/60°C)

Ranked causes

1. Battery temperature at or above 140°F/60°C during charging (occasional)

First check

Press and hold Display button for 15 seconds to read fault code

Test point: Battery Display button
Expected: Fault LED blinks 13 times to indicate Fault Code 13 (over temperature during charge)

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Battery performance degraded after drop or physical damage patient safety

SurePower Battery Pack dropped or physically damaged, may expose users to safety hazard and affect reliable operation

Ranked causes

1. Battery physically dropped or damaged (unknown)

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Battery requires recalibration

Recalibration LED lights for approximately 10 seconds after pressing Display button; runtime indicator does not display runtime for that battery

Ranked causes

1. Battery needs recalibration (unknown)

First check

Press Display button

Test point: Battery Display button
Expected: Recalibration LED lights for approximately 10 seconds

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Battery runtime indicator LEDs not illuminating

When Display button is pressed, LEDs do not light or fail to show expected runtime indication

Ranked causes

1. Display button not pressed or released correctly (common)

First check

Verify Display button responds to press

Test point: Display button on top of SurePower Battery Pack
Expected: All LEDs blink when button pressed and released

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Battery runtime indicator shows low or blinking LEDs patient safety

Left-most LED blinks or fewer than expected LEDs illuminate indicating insufficient runtime

Ranked causes

1. Battery charge depleted below 15 minutes runtime (common)

First check

Press Display button and observe LED pattern

Test point: Runtime indicator LEDs on SurePower Battery Pack
Expected: If left-most LED blinks, battery runtime is less than 15 minutes

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Battery under temperature during charge (Fault Code 14) caution

Battery is at or below minimum temperature for charging (32°F/0°C)

Ranked causes

1. Battery temperature at or below 32°F/0°C during charging (occasional)

First check

Press and hold Display button for 15 seconds to read fault code

Test point: Battery Display button
Expected: Fault LED blinks 14 times to indicate Fault Code 14 (under temperature during charge)

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Display indicators inconsistent between battery and charger/defibrillator patient safety

Display indicators on SurePower Battery Pack do not match indicators on SurePower Charger Station or ZOLL defibrillator, indicating potential fault condition

Ranked causes

1. Battery fault condition (unknown)

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Error codes

Code	Meaning	Trigger	Severity
`13`	Battery Over Temperature During Charge	Battery temperature reaches or exceeds 140°F/60°C during charging	warning
`14`	Battery Under Temperature During Charge	Battery temperature drops to or below 32°F/0°C during charging	warning

Likely causes and actions for each code are in ServiceForge. Connect ServiceForge to your AI

Community

0 fixes logged by technicians through their AI, with outcomes, for this model.

ServiceForge knowledge base record. Field-unverified unless technicians confirmed it. A teaching summary of the record, not a service manual. Export 2026-10-14.