Battery Backup for Medical Devices in Apartments (Beyond CPAP)
Medical device failures during power outages aren't just inconvenient — they can be life-threatening. While CPAP machines are the most discussed medical device for battery backup, many other essential devices also need reliable power during blackouts.
This guide covers battery backup requirements for oxygen concentrators, nebulizers, insulin pumps, and other critical medical equipment in apartment settings.
Oxygen Concentrators
Oxygen concentrators are the most power-hungry common medical device. A typical home unit draws 300–600 watts continuously. For a 10-hour overnight backup, you need a 3000–6000Wh power station — larger than most portable units.
Recommendation: Bluetti AC200L (2048Wh) or EcoFlow Delta Pro (3600Wh). These are larger units designed for serious backup. Budget: $1,600–$3,000.
For shorter outages (2–4 hours), a 1000Wh unit like the Jackery Explorer 1000 v2 can work in a pinch.
Nebulizers
Nebulizers typically draw 100–200 watts and run for 10–20 minutes per session. Even a small 500Wh power station can provide dozens of treatments — this is one of the easiest medical devices to back up.
Budget pick: EcoFlow River 2 (256Wh, $259) — enough for 10+ treatments.
Insulin Pumps and Continuous Glucose Monitors (CGMs)
These devices have tiny batteries that last days under normal use. A phone-style power bank (20,000mAh) is usually sufficient for keeping them charged during a multi-day outage. No need for a full power station.
However, insulin must be refrigerated — see our guide on keeping food and medicine cold during outages.
Electric Hospital Beds and Lift Chairs
These draw 150–300 watts and are essential for mobility-impaired users. A 1000Wh power station can run a lift chair for 3–6 hours — enough for getting in and out of bed during an outage.
Dialysis Machines
Home dialysis machines draw 200–400 watts and run for 3–5 hours per session. A 2000Wh+ power station is recommended. Calculate exactly: if the machine draws 300W for 4 hours, you need 1200Wh minimum (plus overhead).
Feeding Pumps and Suction Machines
These draw 50–150 watts and are typically needed intermittently. A 1000Wh unit provides 6–20 hours of use, depending on the device.
Power Station Sizing Guide for Medical Devices
| Device | Watts | Min Wh Needed (10h) | Recommended Station |
|---|---|---|---|
| Oxygen concentrator | 300–500W | 3000–5000Wh | Bluetti AC200L or larger |
| Nebulizer | 100–200W | ~100Wh (per treatment) | Any 500Wh+ unit |
| CPAP (no humidifier) | 30–60W | 300–600Wh | EcoFlow River 2 Pro |
| CPAP (with humidifier) | 60–120W | 600–1200Wh | EcoFlow Delta 2 |
| Insulin pump charger | 5W | ~10Wh | 20,000mAh power bank |
| Electric lift chair | 150–300W | 300–600Wh (5 cycles) | Jackery 1000 v2 |
Medical Backup Tips for Apartment Dwellers
- Keep a dedicated power station for medical devices — don't use it for phones or lights
- Label all cords and devices so family or caregivers can set up backup quickly
- Test your setup quarterly — know exactly which outlet on the station to use
- Register with your local utility's medical priority program for outage notifications
- Have a written plan: if the outage exceeds X hours, go to Y location with power