為家中多留一份備用電力Keep a little backup power at home

購買前請查看同一配置的現價、優惠條件、運費、庫存及交貨日期。

Check current prices, offer terms, shipping, stock and delivery for the same configuration before buying.

備用電源是一筆家庭開支。先決定停電時需要保留哪些電器、運作多久，再比較容量、輸出及太陽能補電能力。

Backup power is a household expense. Decide which appliances you need during an outage and for how long, then compare capacity, output and solar charging.

我們按容量、輸出與使用情境研究不同型號，整理成這份家庭選購專輯，說明各類電源適合甚麼需要。不妨由最貼近日常的一幕開始：晚上突然停電，房間需要照明，手機要留下電量聯絡家人；若停電拖長一點，又會開始惦記雪櫃。這幾個需要，正好帶我們看清楚各類電源的用途。

We have compared capacities, output and household uses to explain where different models fit. Imagine an evening outage: you need light, a phone for contacting family and, if the outage lasts, power for the fridge. Those connected needs guide this special.

依賴醫療設備的家庭，應先安排停電支援。若有人需要呼吸機、製氧機或其他供電醫療設備，請先與設備供應商及醫護團隊訂立備援計劃，確認相容性及所需續航，並向電力供應商與網絡商登記 Priority Services Register。登記不代表保證不停電，也不能只依靠一般消費級電源。在英格蘭、蘇格蘭及威爾斯，停電可致電 105；如有即時生命危險，請致電 999。

Medical equipment needs a separate outage plan. For ventilators, oxygen concentrators or other powered medical equipment, agree a backup plan with the equipment provider and healthcare team, confirm compatibility and runtime, and join your supplier’s and network operator’s Priority Services Register. Registration does not guarantee uninterrupted power. Do not rely solely on a consumer power station. In England, Scotland and Wales call 105 for a power cut; call 999 for immediate danger to life.

沿着這條線讀下去，我們先看能保住通訊與照明的小型電源，再看看較大容量如何照顧更多設備，最後才談太陽能板怎樣補回用掉的電。這樣比較價格，也較容易知道自己究竟在買甚麼。

Follow that thread: first small stations for light and communication, then more stored energy for additional devices, and finally solar panels to replenish it. Price comparisons become more useful when we know what the equipment is meant to do.

先從一盞燈和一部手機說起Start with a light and a phone

如果擔心的只是短時間停電，家中已有行動電源和獨立照明，未必需要添置大型設備。若還希望接上手提電腦、路由器或小型電器，帶交流電插座的便攜式電源便值得留意。路由器有電，也仍要視乎網絡服務是否正常，才能繼續上網。

For a short outage, existing power banks and separate lights may cover your needs. A portable station with AC sockets becomes more interesting when you also want to connect a laptop, router or small appliance. A powered router still depends on the network service remaining available.

這一組裏，EcoFlow RIVER 3 Plus與Anker C300X容量接近，可把兩者放在一起比較最終價格與輸出。Jackery Explorer 500 v2則把容量提高至約半 kWh；它的有趣之處，是介乎小型電源與下一組約 1kWh 型號之間。

The RIVER 3 Plus and Anker C300X have similar capacities, so compare final price and output side by side. The Jackery Explorer 500 v2 steps up to around half a kWh and sits between these smaller units and the next group.

如果想保留的用電更多，或擔心停電時間較長，便會走到約 2kWh 的選擇。不過，容量增加，價格、重量和收納需要也會一起增加。這時應該問的，不只是「哪部減得最多」，還有「多出來的電量，家中是否真的用得上」。

More devices or a longer outage lead us towards roughly 2kWh models. Extra stored energy also brings price, weight and storage trade-offs. Ask whether your household can use that additional reserve, as well as how much the price has fallen.

多留一些電，也要為它留一個位置A larger reserve needs a place at home

Anker S2000、Jackery Explorer 2000 v2與BLUETTI Elite 200 V2都在約 2kWh 級別。S2000 可以從容量與價格入手比較；Jackery 的輸出更高；BLUETTI 在這組的輸出與太陽能輸入上限較突出，重量也較大。若要經常搬動，這些都是比價時不能漏掉的部分。

S2000, Explorer 2000 v2 and Elite 200 V2 all sit around 2kWh. Start with S2000’s capacity-to-price comparison, Jackery’s higher output, and BLUETTI’s output and solar-input ceiling—alongside its greater weight. Ease of moving the station matters too.

買回來之後，讓它一直準備好

After buying, keep it ready

備用電源的價值，還在於需要時能否立即使用。平日按原廠說明設定存放電量，定期檢查電量、充放電及試用常用設備；各型號的週期與做法不同，不宜一律套用「每三至六個月充滿一次」。存放時避免潮濕、陽光直曬及高溫，充電或使用時保持散熱孔暢通，不要遮蓋機身，並使用原廠指定或相容的充電器與線材。

Backup equipment helps only if it is ready when needed. Follow the model’s manual for storage charge, periodic charge/discharge and testing with your usual devices. Intervals and procedures vary; there is no universal three-to-six-month full-charge rule. Avoid moisture, direct sun and excessive heat. Keep vents clear, never cover the unit while charging or in use, and use approved compatible chargers and cables.

可參考 Anker 的使用與存放指南；實際操作仍以所購型號的使用手冊為準。

See Anker’s use and storage guide; follow the manual for the model you buy.