WGP Optima 302 27W 10500mAh Mini DC UPS — Router, ONU & Camera Backup Reviewed by CSI
The WGP Optima 302 is a 10500mAh mini DC UPS that keeps a router, ONU, and IP camera running from one unit the instant grid power cuts — no reboot, no dropped connection. That single fact is the reason it shows up on so many "which mini UPS should I buy" shortlists in Bangladesh right now, and it's why we're breaking down exactly how it behaves once it's actually mounted on a wall, not just what the spec sheet claims.
Why This Unit Gets Recommended Over a Generic Mini UPS
Most low-cost mini UPS units on the market handle one job — keep a router alive. The Optima 302 is built around a different assumption: that a modern home or small office setup usually has three DC-powered devices running together — a Wi-Fi router, a fiber ONU/ONT, and an IP camera or NVR — and all three need to stay up at the same moment, not just the router.
It does this through four simultaneous output paths rather than one: two 12V/2A DC ports, one 9V/1A DC port, and a QC3.0 USB port (5V/3A or 9V/2A) for fast-charging a phone or powering a low-draw accessory. Total combined output is capped at 27W, which is enough headroom for the router+ONU+camera combination this product is actually named after, without the box overheating or throttling under load.
What Happens the Moment Power Cuts — In Practice
Switchover between mains and battery is instant, with zero perceptible drop in DC output. This matters more than the marketing language suggests: on cheaper units, a slow or non-instant transfer causes routers to soft-reboot or ONUs to lose sync with the ISP's OLT, which means you're not actually protected from the outage — you just delayed the disconnect by a few seconds. The 302's transfer is fast enough that connected equipment doesn't register the switch at all.
Runtime is built around its 10500mAh lithium cell (roughly 38–39Wh of usable energy). In real load-shedding conditions — router plus ONU drawing a combined 5–8W — that translates to several hours of continuous internet uptime, which comfortably covers the typical 1–3 hour outage windows most areas in Bangladesh still experience. Add the camera into the mix and runtime shortens proportionally, which is worth planning for if uninterrupted CCTV recording during outages is your main priority.
Built-In Protection, Not Just Battery Capacity
The part of this unit that doesn't show up in a headline spec but matters for anyone who's had a router or ONU damaged by a bad surge: the 302 includes overcharge, over-discharge, overload, and short-circuit protection on its internal battery management system. Combined with a flame-retardant outer shell and side-vented heat dissipation, it's designed to sit powered and charging 24/7 for months without degrading — which is exactly how a networking backup device actually gets used, unlike a power bank that gets cycled daily.
The compact footprint (roughly the size of a deck of cards) and wall-mount hook slot on the rear are also functional rather than cosmetic — the intended setup is mounted directly beside or below the router/ONU on the wall, keeping desk and shelf space clear and cable runs short.
Who Should Actually Buy This Model
- Home users running router + ONU together who want both to survive an outage without re-syncing when power returns.
- Households or shops with an IP camera or small NVR that needs to keep recording through load-shedding, not just resume afterward.
- Small offices and retail counters where a dropped internet connection during a power cut means a stalled POS system or missed calls.
- Freelancers and remote workers who can't afford a mid-call or mid-upload disconnect every time the grid blinks.
If your setup is a single router with nothing else attached, you don't need the four-output capacity here — the lighter WGP Optima 103G 8000mAh Mini UPS for Wi-Fi routers covers that single-device use case at a smaller footprint. The 302 earns its place specifically when a second or third device needs to stay on the same backup circuit.
Genuine Stock, Warranty, and Support Through CSI
CSI is Bangladesh's leading IT products distributor, and every WGP unit sold here is sourced through official channels with full warranty coverage — not grey-market stock. That distinction matters specifically with mini UPS devices, because the battery cell inside is the one component that separates a genuine unit from a look-alike clone: mismatched or reused cells are the most common cause of early failure and reduced runtime in this product category.
Buying through CSI also means:
- A traceable, brand-authorized supply chain, with the full WGP product lineup available under one distributor.
- Standard manufacturer warranty honored locally — no dealing with cross-border claims.
- Secure, tracked delivery nationwide, with support available before and after purchase if you're unsure which output configuration matches your router/ONU/camera setup.
- A dedicated Mini UPS category page if you want to compare capacities and output configurations side by side before deciding.
Frequently Asked Questions
What does the WGP Optima 302 actually power at the same time?
It can run a Wi-Fi router, a fiber ONU/ONT, and a low-power IP camera simultaneously, using its two 12V/2A ports, one 9V/1A port, and one USB port, up to a combined 27W.
How long does the 10500mAh battery last during a power cut?
With a router and ONU load, it typically covers several hours of continuous backup — enough for most standard load-shedding windows. Adding a camera to the load shortens that runtime proportionally.
Does it reboot my router when the power comes back?
No. Because switchover between mains and battery is instant in both directions, connected devices experience no interruption, so there's no reboot or re-sync needed on either transition.
Is the WGP Optima 302 price in Bangladesh the same everywhere?
Pricing on WGP units varies by seller depending on whether the stock is genuine, brand-authorized, and warranty-backed. The safest way to confirm current, accurate pricing is directly on CSI's product listing, where stock is verified and warranty terms are clearly stated.
What's the difference between the Optima 302 and the Optima 103G?
The 103G is a single-router-focused mini UPS with a smaller 8000mAh cell. The Optima 302 is built for multi-device setups — router, ONU, and camera together — with four output ports and a larger 10500mAh battery.
Can it charge a phone while backing up my router?
Yes. The QC3.0 USB port (5V/3A or 9V/2A) can fast-charge a phone or other USB device at the same time the DC ports are powering networking equipment, within the 27W total limit.
