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BioLite BaseCharge 1500+ Runtime Calculator
Quick answer: the BioLite BaseCharge 1500+ stores 1,521 Wh and delivers up to 1,200 W of continuous AC power. Under this site's planning assumptions (85% inverter efficiency, 10% reserve), a steady 100 W AC load runs for roughly 11.6 hours. Last source check: 2026-08-20. This is an estimate, not a guarantee.
Battery capacity1,521 Wh
AC output1,200 W
Surge output2,400 W
Battery chemistryLi-ion NMC
ConfidenceVerified
Source regionGlobal/general sources
checked2026-08-20
Swipe table sideways
| Battery capacity | 1,521 Wh |
|---|---|
| Battery chemistry | Li-ion NMC |
| AC output | 1,200 W |
| Surge output | 2,400 W |
| DC output | 120 W |
| USB-C output | 100 W |
| Solar input | 400 W |
| Weight | 12.1 kg |
| Confidence | Verified |
| Lifecycle status | Discontinued in US storefront; checked Aug 20, 2026 |
| Source region | Global/general sources |
| Last verified | 2026-08-20 |
Catalog notes (original English)
The current US page identifies this 1521Wh model as BaseCharge 1500+ and says it was discontinued in Summer 2025.
Lifecycle note: This label describes availability in the cited region only. It does not imply that another model is universally better, compatible, or an official replacement. Open lifecycle evidence
Runtime estimate
Formula starting points use each scenario’s default watts, duty cycle and output path, with 10% reserve or 15% for CPAP. Linked detail pages use the same inputs. Hours apply only if the device can run and start; they are not measured runtimes.
Swipe table sideways
| Device scenario | Planning default | Estimated runtime | Device scenario: Confidence | Models |
|---|---|---|---|---|
| Full-size refrigerator | 500 W · 33% · AC inverter · Reserve: 10% | 7h 3m Exceeds a tracked power limit — do not rely on these hours | Estimated | Calculator |
| CPAP without heated humidifier | 40 W · 100% · AC inverter · Reserve: 15% | 1d 3h Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
| Starlink Mini | 32 W · 100% · USB-C PD · Reserve: 10% | 1d 15h Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
| Wi-Fi router | 12 W · 100% · AC inverter · Reserve: 10% | 4d 4h Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
| LED TV | 100 W · 100% · AC inverter · Reserve: 10% | 11h 38m Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
Runtime calculator
Runtime is conditional on successful startup, compatible voltage/connectors and sufficient output. Verify the actual device setup before relying on these hours.
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Power station model
Battery capacity (Wh): 1521 WhContinuous output rating (W): 1200 WSurge output rating (W): 2400 W
Estimated runtime19h 24m12h 8m – 1d 0hEstimated runtime: 19h 24m, 12h 8m – 1d 0h
Output path
Estimated runtime
Within the tracked power limits; compatibility still needs checking
This is an estimate. Real runtime changes with load, temperature, battery age, AC/DC output, and device behavior. Runtime is conditional on successful startup, compatible voltage/connectors and sufficient output. Verify the actual device setup before relying on these hours.
19h 24mEstimated runtime: 19h 24mThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.
Conservative12h 8m
Estimated19h 24m
Optimistic1d 0h
These are calculated sensitivity cases, not a statistical confidence interval. Conservative uses lower efficiency and battery health, more reserve/temperature loss and higher load; optimistic changes these assumptions in the opposite direction.
- This is an estimate. Real runtime changes with load, temperature, battery age, AC/DC output, and device behavior. Runtime is conditional on successful startup, compatible voltage/connectors and sufficient output. Verify the actual device setup before relying on these hours.
- Within the tracked power limits; compatibility still needs checking
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
- Rated battery
- 1521 Wh
- Usable energy
- 1164 Wh
- 1521 Wh x 85% x 90% x 100% x 100%
- Running watts
- 60 W
- Average load
- 60 W
- Max surge
- n/a
- Fixed station overhead
- Unknown (not included)
- 60 W / 85% = 70.6 W battery draw; fixed overhead is unknown and excluded
- Estimated runtime
- 19h 24m
- 1164 Wh / 60 W = 19h 24m
- Output path
- AC inverter
- Efficiency (%)
- 85
- Reserve kept unused (%)
- 10
- Battery health (%)
- 100
- Cold weather loss (%)
- 0
This link contains the numeric values you entered, but not custom load names.
Source-Backed Next Steps
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WattRunTime.com
WattRunTime estimate
Estimated runtime
19h 24mThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.Usable energy1164 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a
Runtime range
Conservative12h 8m
Estimated19h 24m
Optimistic1d 0h
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
Usable energy1164 Wh1521 Wh x 85% x 90% x 100% x 100%
Fixed station overheadUnknown (not included)60 W / 85% = 70.6 W battery draw; fixed overhead is unknown and excluded
Estimated runtime19h 24m1164 Wh / 60 W = 19h 24m
Assumptions
- 1521 Wh nominal battery capacity
- AC inverter output path
- 85% conversion efficiency
- 10% reserve kept unused
- 60 W average load from 1 load
- 100% battery health
- 0% temperature loss
- Fixed station overhead unknown; not included
Warnings
- This is an estimate. Real runtime changes with load, temperature, battery age, AC/DC output, and device behavior. Runtime is conditional on successful startup, compatible voltage/connectors and sufficient output. Verify the actual device setup before relying on these hours.
- Within the tracked power limits; compatibility still needs checking
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Planning notes
- Capacity class: 1,521 Wh. Size the battery for your measured average load and required hours, including reserve.
- Tracked output: 1,200 W. Compare both running demand and startup demand before using any runtime estimate.
- Solar input limit: 400 W. Actual refill depends on panel voltage/current compatibility, sunlight, angle and charging losses.
Known data gaps
- Unverified or missing specifications remain visible. The confidence label describes the station record, not a tested runtime or approval for emergency use.
- Weight: 12.1 kg. Check the complete carrying setup, cables and battery extensions before choosing this model for travel.
- unknown: —
Models: BioLite
Compare nearby capacity records from the same brand, then check output, weight and missing fields. A larger battery does not establish device compatibility.
BioLite BaseCharge 600+
622 Wh · AC output: 600 W · Confidence: Verified
Sources
- BioLite BaseCharge 1500 product page (Official; checked 2026-08-20)