The Short Answer
Power banks under 100Wh fly free in the Philippines, no approval needed. Between 100Wh and 160Wh, you need airline sign-off at check-in. Anything over 160Wh stays home, and it never goes in checked baggage regardless of size.
A power bank exploded on an inspection table at Roxas Airport in Capiz this year. Security had already flagged it, a 72,000mAh unit pulled from a Manila-bound passenger's bag during routine screening. It sparked before anyone could move it, then caught fire outright. A guard put it out with an extinguisher in seconds. Nobody was hurt. The Civil Aviation Authority of the Philippines called the security team's response swift and professional, which is the polite way of saying it could have gone very differently in a boarding queue instead of an inspection room.
That's the scenario CAAP is trying to prevent with the Wh limits, not the mAh number printed on the box that most of us actually look at. For context, CAAP itself points to the common 10,000mAh power bank as a safe, no-approval-needed example, the same capacity carried in most travel bags.
Wh, Not mAh, Is What Airport Security Checks
Milliamp-hours (mAh) tell you how much charge a power bank holds. Watt-hours (Wh) tell you how much energy that charge represents, and that's the number aviation regulators actually regulate. The conversion is simple:
Wh = (mAh × Voltage) ÷ 1,000
Most power banks run at 3.7V internally, even if the box lists a 5V output. A 20,000mAh power bank at 3.7V works out to about 74Wh, comfortably under the no-approval threshold. Push the voltage assumption to 5V and the same 20,000mAh unit reads closer to 100Wh, right at the line. That gap is exactly why CAAP tells travelers to check the printed Wh rating directly rather than doing the math themselves from mAh alone.
CAAP's Power Bank Limits at a Glance
| Capacity | Allowed? | What you need to do |
|---|---|---|
| Up to 100Wh | Yes | Nothing, board as normal |
| 100Wh to 160Wh | Yes, with approval | Request clearance at the check-in counter before security |
| Over 160Wh | No | Not permitted on board, in hand-carry or checked baggage |
One rule applies regardless of capacity: a power bank never goes in checked baggage. It has to stay in the cabin with you, in a pocket or the seat pocket in front of you, never in the overhead bin. That's true even for the smallest, most obviously-under-100Wh unit in your bag.
Flying Cebu Pacific? Here's Their Specific Rule
CEB caps it at two power banks per passenger, on top of the standard Wh limits. Doesn't matter if both are small, tuloy-tuloy pa rin ang bawal sa third unit. Charging or using a power bank mid-flight is off the table too, so that mid-flight phone top-up while queued for the lavatory isn't happening on a CEB flight regardless of what your power bank's Wh rating says.
Wrap the terminals in tape, or just keep the unit in its original box or a pouch, so nothing shorts out loose against your keys or coins in a bag. Philippine Airlines and other local carriers follow the same CAAP baseline, though it's worth a quick check with your specific airline before a flight since exact approval processes can vary carrier to carrier.
Before You Pack It
- Check the printed Wh rating on the unit itself. If only mAh is printed, use the formula above with 3.7V as your estimate, then round up for safety.
- Skip anything with a swollen, cracked, or pregnant-looking casing entirely, regardless of its rated capacity. CAAP flags damaged batteries as a fire risk on sight.
- Keep it in your hand-carry, not checked baggage, every time.
- If you're between 100Wh and 160Wh, call your airline or check their help center before you get to the airport, not at the check-in counter under time pressure.
CAAP's own guidance (published on caap.gov.ph) walks through the same math, worth a direct read if you're flying with anything close to the 100Wh line. For everyday carry within that safe zone, a straightforward 10,000mAh to 20,000mAh unit from our power bank collection covers a normal weekend trip without any approval paperwork at all.
