For Southern California Edison households, a charged phone power bank is a useful companion to home battery backup. Check what it can actually deliver to your phone before counting on a promised number of recharges.
As of November 9, 2026, at 8:06 p.m. Pacific, this is a preparedness explainer, not a report of a newly confirmed blackout. Use SCE's official outage-status page for your service address. This article is not a live alert service.
Read capacity and charging speed separately
Anker's capacity explanation distinguishes milliamp-hours, or mAh, from watt-hours, or Wh. Watt-hours account for voltage: mAh divided by 1,000, multiplied by nominal voltage, gives stored Wh. Conversion losses mean less energy reaches the phone.
For a hypothetical label of 10,000 mAh at 3.7 volts, that calculation gives 37 Wh of stored energy. It does not promise 37 Wh delivered to the phone or a fixed number of full recharges. Using the phone while charging also consumes energy.
Check output capability separately. The power bank, cable and phone must support the intended charging method; a high capacity number alone does not establish fast charging. Use the manufacturer's instructions for your exact equipment.
Try the kit you intend to use
SCE's preparedness guidance includes external battery packs and portable chargers among emergency supplies. Turn that recommendation into a practical household check:
- Charge the power bank, then connect each household phone using the cable stored with the kit.
- Confirm the phone indicates charging. Record the starting and ending phone percentages during an ordinary top-up, along with the power bank's remaining indicator.
- If several people will share it, agree which phone gets priority for essential calls and updates.
- Recharge the bank after the check and keep its instructions and compatible cables together.
This is a suggested functional check, not a calibrated capacity test or a guarantee of performance in a prolonged outage. Follow the manufacturer's storage, temperature and condition guidance. A device kept in a drawer still needs periodic attention.
Plan a place to recharge it
If your home has solar-plus-battery backup, ask the installer which accessible outlet can recharge the portable bank during an outage. Put that outlet on your household instructions rather than assuming every wall outlet remains powered.
Ordinary grid-tied solar alone generally does not provide outage electricity. Backup requires compatible equipment and configuration. Tesla's outage guidance explains why available charge, combined load and equipment power limits affect operation. Home battery runtime is finite, and solar recharge depends on sunlight and system conditions.
A charged phone also cannot restore an unavailable cellular network. Keep the household check-in plan alongside the charging plan so family members know what to do if communications are disrupted.
Include charging needs in the PPA discussion
A qualifying no-upfront solar-plus-battery PPA can help eligible homeowners access equipment designed around selected household needs. Include communications equipment in the load discussion while keeping a portable charging option available away from the house.
The provider retains ownership under a PPA, and ongoing payments apply. Review the energy rate, possible escalator, contract term, battery fees, maintenance, replacement and transfer provisions, plus remaining utility costs. Availability depends on the offer and property; no upfront purchase does not mean free electricity or guaranteed savings. The CPUC solar guide explains these financing considerations.
Talk with West Coast Alternatives about your essential loads, backup outlets and solar-plus-battery options.