Replacement batteryDSC
Keep your system powered and protected.
DSC PG9911B-BATT — PowerG Wireless Outdoor Siren with Battery. Genuine accessory — supported device sold separately.
In stock — ships in 1–2 business daysWorks withQolsys & DSC PowerG panels
$230.30CAD · one-time equipment
- OEM-spec cell — no compatibility guesswork
- Restores backup runtime on an ageing device
- Simple swap with no re-enrollment on most devices
- Backed by Altium 360 expert support and warranty
Accessory only — the device it supports is sold separately.
Pricing varies by package and monitoring plan. See Home packages or Business packages.
Why this accessory
- OEM-spec cell — no compatibility guesswork
- Restores backup runtime on an ageing device
- Simple swap with no re-enrollment on most devices
- Backed by Altium 360 expert support and warranty
Why customers choose Altium 360
- Alarm.com Authorized Dealer
- Secure online checkout
- Flexible monitoring options
- Expandable security platform
- Manufacturer warranty
- Professional technical support
- Easy DIY installation
- Residential & commercial solutions