Window AC · ALLPOWERS R1500
How Long Will an ALLPOWERS R1500 Run a Window AC?
About 2.2 h for a 5,000 BTU window AC (450 W), by our math: 1,152 Wh × 0.85 ÷ 450 W. Across the cases below: 1.5 h to 2.2 h.
| Spec | ALLPOWERS R1500 |
|---|---|
| Battery | 1,152 Wh (maker spec) |
| Usable (× 0.85) | 979 Wh |
| Output / surge | 1,800 W / 3,000 W |
| Own draw | not listed |
| Solar input | 650 W |
| Price | $539 at ALLPOWERS |
Check R1500 price at ALLPOWERSPaid link
Window AC hours on the R1500
| Case | Watts | On the R1500 |
|---|---|---|
| 5,000 BTU window AC (Frigidaire) | 450 W | 2.2 h |
| 8,000 BTU window AC (Friedrich) | 661 W | 1.5 h |
Wh × 0.85 ÷ (watts + the station’s own draw, where the maker lists it).
Hours are nonstop; the compressor cycles off once the room is cool, so real hours are longer.
Can the R1500 start it?
We plan for a start of about 4× running watts, a figure from a generator maker (Polaris). Inverter ACs start more gently (Berkeley Lab). The R1500 has a 3,000 W surge. 5,000 BTU window AC: covers it; 8,000 BTU window AC: covers it.
How much an hour takes
An hour of a 5,000 BTU window AC running nonstop uses about 450 Wh, about 46% of the R1500’s usable 979 Wh. At its 650 W solar input and our 75% assumption, strong sun puts about 488 Wh an hour back into the battery.
AC manuals commonly say to plug into a wall outlet and not to use an extension cord; check yours first.
Window AC on similar stations
| Station | Capacity | 5,000 BTU window AC | Price |
|---|---|---|---|
| BLUETTI AC180 | 1,152 Wh | 2.1 h | $499 |
| Jackery Explorer 1000 v2 | 1,070 Wh | 2 h | $499 |
| Anker SOLIX C1000 Gen 2 | 1,024 Wh | 1.9 h | $499.99 |
| BLUETTI Elite 100 V2 | 1,024 Wh | 1.9 h | $489 |
Maker prices, Oct 26, 2026, unless dated. Checkout price applies.
More: ALLPOWERS R1500 specs and every runtime · Window AC on every station · calculator for your own devices.
Quick answers
How long will the ALLPOWERS R1500 run a window air conditioner?
About 2.2 h for a 5,000 BTU window AC (450 W), by our math: 1,152 Wh × 0.85 ÷ 450 W.
Can the ALLPOWERS R1500 start a window air conditioner?
We plan for a start of about 4× running watts, a figure from a generator maker. Inverter ACs start more gently. The R1500 has a 3,000 W surge. 5,000 BTU window AC: covers it; 8,000 BTU window AC: covers it.
How long does the ALLPOWERS R1500 take to recharge with solar?
About 2.4 hours of strong sun from empty at its 650 W solar input, by our 75% assumption; clouds and winter sun add time.
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