AGM Battery Backup for Security & UPS (Canada): EA12-100 vs EA12-220 vs NP400-6
Power outage = Wi-Fi down, cameras off, alarm panel offline, and your small office network suddenly disappears. 😬 That’s why an AGM battery backup is still one of the most reliable options for security camera backup, alarm panel battery backup, and a router UPS battery setup across Canada.
In this quick guide, we compare three popular AGM choices: Altilium EA12-100, EA12-220, and NP400-6 — and help you pick the right battery based on runtime, footprint, and real-world use.
Why choose an AGM battery for security + UPS?
A reliable AGM lead acid battery works great for standby power because it’s:
✅ Sealed + maintenance-free ✅ Designed for standby/float charging (UPS-friendly) ✅ Excellent for routers, modems/ONT, alarm panels, CCTV cameras, NVRs, access control ✅ Proven performance for Canadian homes + small businesses
Fact: AGM batteries are VRLA (valve regulated lead acid) batteries — built for dependable standby power when sized and charged correctly.
Quick comparison (simple)
🔋 EA12-100 (12V 100Ah)
Best for: router UPS battery backup, small alarm panels, light CCTV backup Why it’s popular: best balance of size + price + capacity Trade-off: may be limited for longer runtime with many cameras + NVR
🔋 EA12-220 (12V 220Ah)
Best for: longer backup time, multiple devices, CCTV + NVR overnight backup Why it’s great: more usable energy, more margin, less stress on the battery Trade-off: heavier + larger + higher cost
🔋 NP400-6 (6V)
Best for: compact telecom/rack banks (series-parallel builds) Why people use it: flexible bank building where space is tight Trade-off: needs proper wiring (series/parallel) to hit 12V/24V and required capacity
Ah vs Wh (plain English)
Battery runtime is easier in Wh (watt-hours):
Wh = Volts × Ah Example: 12V × 100Ah = 1200Wh
Real-world runtime is less because of:
UPS/inverter losses
voltage sag at higher loads
safe depth of discharge (many users plan around 50% DoD for longer life)
How runtime changes with load
Low loads (10–30W): many hours (often overnight or longer)
Moderate loads (100–300W): usually a few hours
Higher loads reduce usable capacity faster
Tip: list every device and use average watts: modem/ONT, router, NVR, switch, access control, etc.
Real-world examples (Canada)
📌 Home Wi-Fi backup (router + ONT) If your draw is around 10–15W and you want 8 hours, you often need less capacity than expected. Many choose EA12-100 just for big safety margin.
📌 CCTV + NVR overnight backup 4 cameras + NVR typically sits around 25–40W. For ~12 hours, EA12-100 often fits well. Want more margin? EA12-220 is smoother.
📌 Small office network closet Routers + switch + VoIP + access control commonly hits 65–85W. For 6 hours, EA12-220 (or 2× EA12-100 in parallel) is a common approach.
Which one should you choose?
Choose EA12-100 if you want the best all-rounder for: ✔ router UPS battery backup ✔ alarm panel battery backup ✔ small CCTV setups
Choose EA12-220 if you need: ✔ longer runtime (CCTV + NVR, multiple devices) ✔ more resilience during long outages ✔ better battery life (lower discharge per outage)
Choose NP400-6 if you’re building: ✔ compact rack/bank systems ✔ modular series/parallel battery banks
Full guide (with sizing examples + checklist)
Why AGM battery backup for security and UPS















