Best in 7 days
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Ships within 48 hours · Estimated delivery Jun 27 - Jul 2
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Description
Ajax EN54 Internal Battery 72h, 10Ah Li‑ion 7.4V 127879.324.BLAjax EN54 Internal Battery (72h) 127879. 324. BL Rechargeable Liion internal backup battery (10 Ah, nominal 7. 4 V) designed for Ajax EN54 Fire Hub Jeweller and EN54 Fire ReX Jeweller. Provides up to 72 hours autonomous operation per EN 544 requirements; hotswappable with a special tool to allow replacement without interrupting the control panel. Intended for internal installation only (IP20). Not a generalpurpose external battery. Key benefits:
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.5 ★★★★★
Based on 1355 reviews
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Product Reviews
★★★★★ 5
My dog loves it!
Color: Blue
Fun, good durability while she paws at it, easy to clean and worth the money, good size for 40 pound dog.
My Border Collie loves it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
★★★★★ 4
Five minutes of entertainment
Color: Grey
My eight pound chihuahua mix figured the puzzle out very quickly. It kept her entertained for about five minutes.
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Reviewed in the United States on May 1, 2026
★★★★★ 5
Size dog recommendations
Color: Grey
Not recommended for big dogs.
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Reviewed in the United States on May 30, 2026
★★★★★ 2
Small in size
Color: Grey
Very small, picture makes it look much larger than it is. Seemed more appropriate for a cat, and 6 month puppy figured it out in under 1 min. Not very challenging.
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Reviewed in the United States on June 7, 2026
★★★★★ 5
Excellent for boredom and learning
Color: Blue
Wonderful! Daughters very intelligent Australian shepherd loves this. She takes it out when he's bored, or has t been able to give as much one on one. Well made
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Reviewed in the United States on May 26, 2026
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