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Rectangular lithium-ion battery pack, blue shrink wrap with white label, wire connector visible

FYIOGXG Replacement Battery for Honeywell AI05-2 AIO7-1 AIO7-2 Pro 7 7800mAh 28.86Wh 3.7V

SKU CH-89B3-AWAH7

Lithium-ion replacement cell delivers 7800mAh at 3.7V for Honeywell Pro 7 and AI05-2 alarm panels

  • Product typeLithium ion
  • Replacement fits Honeywell AI05-2, AIO7-1, AIO7-2, Pro 7 panels
  • 7800mAh 28.86Wh capacity powers security system reliably
  • 7V lithium-ion cell matches original voltage specification
  • Built-in protection guards against overcharge, over-discharge, over-voltage and short circuit
  • Compact 68.80 x 55.40 x 18.80mm size installs directly in panel

Compatible Alarm Systems

This replacement battery fits Honeywell AI05-2, AIO7-1, AIO7-2 and Pro 7 alarm panels. It matches the original Honeywell 300-10186 part number and uses a fully decoded chip so the system recognises it immediately. Installers and DIY owners can swap the pack without reprogramming the panel.

Capacity and Chemistry

The lithium-ion cell delivers 7800mAh at 3.7V for 28.86Wh of energy. Built-in protection guards against overcharge, over-discharge, over-voltage and short circuits. A new pack reaches full performance after two or three complete charge and discharge cycles.

Physical Fit and Handling

The pack measures 68.80 by 55.40 by 18.80mm and weighs 146.2g, matching the original enclosure dimensions. Shock-absorbing foam in the packaging protects the battery during transport. Do not disassemble, expose to fire or water, or store above 60 degrees Celsius.

How it compares

Measured against everything we stock in Alkaline & Coin Cell Batteries, at today’s prices. Recalculated every night.

Price $14.99
Cheaper than about 60% of the 190 comparable items (median $18.49).

Specifications

Product
Brand nameFYIOGXG
Model nameReplacement battery
Product typeLithium ion

Questions about this item

How do I install the FYIOGXG battery in my Honeywell Pro 7 panel, and what step is often missed?

Power down the panel, open the battery compartment, disconnect the old pack, connect the new pack's plug firmly until it clicks, then close the cover. The step often missed is verifying the connector is fully seated before restoring power.

What maintenance will this 7800mAh lithium-ion pack need over its service life?

No routine maintenance is required. After installation, allow 2 or 3 full charge and discharge cycles for the pack to reach its rated 28.86Wh capacity. Avoid chargers not approved for the panel.

What is the first limit reached when the alarm panel runs on this battery during an extended mains outage?

The 7800mAh capacity at 3.7V (28.86Wh) defines the total energy available. Runtime ends when the pack voltage drops to the panel's low-voltage cut-off, triggering a shutdown to protect the cells.

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