Champion · Expansion battery
1,638Wh battery capacity for compatible Champion power stations.
Price varies by retailer
Affiliate-ready field · no official direct price published
Product decision summary
Researched by Andrew Petla · reviewed under the FMG editorial standard · Sep 15, 2026
Trace the evidence · not a hands-on reviewBottom line
Best for: Power-station expansion
Running output
See specifications
Fuel / power
Battery
Weight
24.9 lb
Strongest reasons
Know before buying
This is an expansion battery, not a standalone power source. Confirm the exact compatible base station before buying.
Scores at a glance
72
Class score
50
Starter fit
Strong in its class among 103 compact expansion batteries.
Weak fitBest current buying route
Check current price
See current offers at Champion
The only verified seller destination for this exact model. Confirm current price and stock with the seller. Confirm price, stock, shipping, and the exact model on the seller’s site.
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Follow the manual’s charging, temperature, storage, and battery-safety requirements.
Price intelligence Evidence ledger Accessories & manualsKey specifications
Published values stay labeled, and every usable metric includes class context. Missing data is shown instead of estimated.
| Specification | This model |
|---|---|
| Running output | Not publishedNo class comparison available |
| Peak / starting output | Not publishedNo class comparison available |
| Stored energy | 1,638WhHigher than 81% of its class |
| Product weight | 24.9 lbLighter than 52% of its class |
| Published sound level | Not publishedNo class comparison available |
| Fuel / power source | BatteryExpansion battery |
| Best current price | Check current priceSee current offers at Champion |
Class comparisons use 103 compact expansion batteries. Runtime figures can use different loads, fuels, or test conditions; confirm the model manual before planning fuel or battery duration.
Visual spec gallery
1,638Wh
Rated battery capacity
Manufacturer runtime
Varies by load
Operating volume
Near-silent battery power
Energy source
Battery
No combustion fuel required
24.9 lb.
Unit weight
13.4 in. × 10.2 in. × 6.7 in.
Length × width × height
Starting system
Push-button power
Power system
Battery inverter
Protection
Battery-management protection
Electrical
See full specs
Connection details are included in the full specification table below.
Official product gallery
These manufacturer images may include output comparisons, controls, dimensions, included equipment, and common use cases. Scroll sideways to view the complete official set available for this model.
Complete specifications
The technical fields below come from Champion’s current U.S. model page. Product photos and infographics come from its official gallery. Confirm current documentation and retailer details before purchase.
Manufacturer overview
Features Increase Run Time Connect this additional battery and add 1638Wh to your power station Efficient Li-ion advanced battery technology delivers lasting fade-free power plus you don’t need gas, there’s no engine, and no emissions Versatile Charge your battery to 80% in 2.8 hours AC or solar charge time, or use AC and solar power together and get a quick 1.4 hour charge time Expansion Options Chain up to 10 expansion batteries per power station to add up to 16.3 kWh capacity and dramatically increase run time Save Space Stack expansion batteries on top of the power station or each other (adapter required if stacking multiple batteries, contact customer service to order for FREE) Description The Champion Power Equipment 201107 1638 Wh Lithium Ion Expansion Battery is the perfect solution to increase run time for your Solar Generator Power Station. You can pair up to 10 expansion batteries per power station. Be confident you have plenty of off-grid power for your homestead, ice fishing shack, or hunting cabin. The Easy Connect DC Solar Charge Harness is equipped with 3 MC4 connectors, plus an APP port if you want to use your solar panel to charge your battery directly. The MPPT s
Best-fit uses
Standout features
Run your essentials through our independent wattage calculator before buying.
Price & Availability
The lowest sticker price is not always the best offer. We rank exact-model seller pages using price, stock, shipping, freshness, returns, and warranty details—then show what is still unknown.
Price and delivered cost
Shipping is included only when the seller publishes a usable amount.
Stock and freshness
Current, low-stock, preorder, and stale records are scored differently.
Purchase protections
Published return and warranty terms improve evidence confidence.
Affiliate-neutral ranking
Commission status is recorded but never adds ranking points.
Watch this model
Save it to your shortlist to retain the current price snapshot and turn price and safety watches on or off.
Best current buying route
See current offers
Check current price
at Champion · Verify stock
Seller options
1
0 with price
Offer rank
22/100
Relative to listed sellers
Data confidence
30%
5 open fields
Delivered totals
0/1
Shipping included
The only verified seller destination for this exact model. Confirm current price and stock with the seller.
Seller data checked Sep 15, 2026.
Shipping not yet verified.
Open fields: current price, confirmed stock, delivered cost, return window, warranty term.
Prices, local stock, shipping, taxes, installation, and seller terms can change. Confirm the exact model and final checkout total before buying. Affiliate disclosure.
Seller comparison
One exact-model seller destination is currently verified. We show the unknown fields so a single listing is never presented as a broad market comparison.
Champion
Check current price
Total not available
30% data confidence · checked Sep 15, 2026
Price history
We preserve each dated seller observation instead of replacing the old number. Trends use the lowest verified listed price on each observation date—not an estimated market price.
Champion
Check current price · Verify stock
Ownership
Ownership is mostly about charge readiness, cable compatibility, storage conditions, and preserving battery health.
Ownership rule
Use the exact Champion 201107 manual for maintenance intervals, fluids, storage limits, and warranty requirements. Similar models are not interchangeable.
Published warranty
3 Year (or 1000 Cycles) Warranty
Coverage can vary by use, seller, and region. Confirm eligibility and exclusions before purchase.
Service information
2 official resources
An owner or operator manual is linked below for exact service intervals.
Battery care
Low mechanical upkeep
Plan for charge-state, cable, ventilation, firmware, and storage-temperature checks.
Handling & storage
24.9 lb · Battery
Store dry and within the manufacturer’s published temperature and charge-state limits.
Practical care plan
Day one
Save the receipt, serial number, seller, warranty terms, and all included cables before packaging is discarded.
First setup
Use the official manual to verify every AC, vehicle, and solar input limit. Install firmware updates only through the manufacturer’s supported process.
Before a trip or outage
Inspect ports and cables, confirm state of charge, test the intended loads, and make sure the recharge plan still matches the forecasted need.
During storage
Follow the model manual for storage temperature, ventilation, recharge cadence, and recommended state of charge. Do not use generic battery advice in place of its limits.
Before you buy
Evidence
We separate sourced facts, reproducible calculations, editorial judgments, and missing evidence. That makes every important claim easier to inspect—and harder to overstate.
Published-data coverage
5 of 6 relevant evidence fields are documented for this model.
Source-backed editorial analysis—not a hands-on or laboratory test.
Source record
3 traceable sources
Last reviewed Sep 15, 2026
Hands-on testing
Checking ledger…
No manufacturer data is presented as an independent test
Verified owners
Checking reports…
Percentages stay hidden until the sample qualifies
CPSC screening
No model-text match
39 generator recall records screened
83%
Documented fields
3
Traceable sources
2
Reproducible calculations
1
Open evidence gaps
Stored-energy density
65.78 Wh/lb
1,638Wh ÷ 24.9 lb
A catalog-derived portability ratio. It does not account for handles, wheels, shape, or how the weight feels in use.
Strongest class-relative spec
81th percentile
Stored energy: 1,638Wh ranked within 103 compact expansion batteries
Higher than 81% of its class
Claim-by-claim evidence ledger
| Evidence type | Claim | Basis | Trace |
|---|---|---|---|
| Published factSource-backed | 1,638Wh of published storage capacity is recorded. | Model-specific battery capacity in the catalog. | Official model source |
| Published factSource-backed | Battery power and 24.9 lb product weight are recorded. | Published configuration and dimensional data. | Official model source |
| Original calculationReproducible | Stored-energy density: 65.78 Wh/lb. | 1,638Wh ÷ 24.9 lb | Calculation standard |
| Original calculationReproducible | Strongest class-relative spec: 81th percentile. | Stored energy: 1,638Wh ranked within 103 compact expansion batteries | Calculation standard |
| Editorial judgmentEditorial | Strong in its class for power-station expansion. | Class score 72/100, declared best use, comparative specifications, and explicit buying cautions. | Inspect the score |
| Editorial judgmentEditorial | This is an expansion battery, not a standalone power source. Confirm the exact compatible base station before buying. | Editorial risk check based on product category, weight, output, price availability, and missing fields. | Judgment standard |
| Open evidence gapCaution | Published price is not sufficiently documented in the current record. | The field remains unknown rather than being inferred from a related model or marketing language. | Not available |
Source ledger
What this evidence cannot prove
Editorial analysis for Champion 201107. Source record last verified Sep 15, 2026. Corrections can be submitted through the contact page with a model-specific source.
Ownership resources
Start with the exact Champion 201107 model or item number. Accessory families can look alike while using different connectors, electrical limits, engines, or mounting points.
Compatible accessories
Shop Champion solar panels, charging leads, and adapters intended for its portable-power ecosystem.
Review Champion expansion batteries and required connection cables.
Protective and mobility accessories can make storage and transport easier.
Compatibility note: Links lead to manufacturer or official retailer resources. Confirm the full model or item number, connector type, voltage, amperage, and published compatibility list before buying. Installation involving a home panel, inlet, transfer switch, or fuel plumbing should be handled as required by local code.
Deeper analysis
The key decision is above. These supporting scorecards, owner signals, and evidence notes stay out of the way until you want to inspect them.
Find My Generator score
Strong in its class
Compared with 103 compact expansion batteries in the current catalog.
Stored energy versus the class
Lower weight scores higher
Rechargeable, indoor-safe operation
Class comparison
A number is more useful with context. Each row shows this model beside its class median and translates the difference into a percentile.
Stored energy
Higher than 81% of its class
Product weight
Lighter than 52% of its class
How the score works: Scores use published specs and are relative to comparable products in this catalog. Missing specs are excluded and remaining weights are normalized. Runtime is the longest manufacturer-published figure and may use a different load or fuel than another model.
Starter Fit Score
Weak fit
For a 3,000W target and a $1,500 budget.
Below your running-watt target
Why it scored this way
This personal score is separate from the model’s class score. It measures fit against your priorities and gives neutral partial credit when price or noise data is missing.
3,000W below your running target.
Price is not published; confirm the current offer.
Battery works with your flexible fuel preference.
24.9 lb against your medium portability priority.
Battery operation strongly matches your quietness preference.
Home-backup fit rewards adequate output and fuel flexibility.
Testing protocol
This category-specific protocol defines the questions, equipment, conditions, outputs, and safety gates required for this exact model. Published specifications stay visibly separate from hands-on measurements.
Manufacturer-published baselines
Published storage capacity
1,638Wh
Product weight
24.9 lb
Published sound level
Not published
These numbers organize the test plan. They are not independent confirmations.
Model-specific test matrix
Planned measurement
How much additional delivered energy does 201107 provide to a compatible base station?
Pair the exact manufacturer-approved base station and firmware, fully balance the system, then discharge through a measured fixed AC load to normal cutoff. Repeat the same base-station test without the expansion battery.
Planned measurement
How much input energy is required for the added usable output?
Measure wall input energy for the paired-system recharge and delivered output energy for the matched discharge. Subtract the separately measured base-station contribution.
Planned measurement
Does the paired system charge, balance, sleep, and wake predictably?
Record displayed state of charge for the base and expansion battery during charge, rest, discharge, shutdown, and restart. Note balancing time and any persistent percentage divergence.
Planned measurement
Do surface temperatures remain stable during sustained charge and discharge?
At defined ambient conditions, record non-contact surface temperatures at repeatable enclosure and connector locations during the paired system’s charge and discharge cycles.
Planned measurement
Which exact base station, cable, and firmware combination was proven?
Record model, serial, cable or dock identifier, firmware, connection sequence, and all system messages. Do not generalize results to similar-looking connectors or unlisted models.
Controlled conditions
Required equipment class
Safety gate
Use a noncombustible, ventilated test area with battery-rated emergency procedures; stop for swelling, odor, smoke, leakage, abnormal heat, or impact damage.
Testing is for qualified personnel using correctly rated load equipment and the manufacturer’s required grounding, bonding, clearance, and protective-device instructions.
Never connect a generator directly to building wiring or bypass overload, temperature, battery, GFCI, or carbon-monoxide shutdown protection.
Stop a run for unstable voltage or frequency, overheating, fuel or electrolyte leakage, abnormal sound, damaged wiring, or any manufacturer fault indication.
Badge rule: this product receives no “FMG Tested” label or score benefit until a real unit, instruments, conditions, valid runs, raw records, and limitations are documented under the public protocol.
Verified owner reliability
Long-term reports from confirmed owners show starting, maintenance, failure, support, and recommendation outcomes for the Champion 201107.
See how ownership is verifiedVerified owners only
Reliability percentages stay hidden until at least 5 ownership-verified reports are published for this exact model — 5 more needed.
Purchase or registration evidence is reviewed privately.
Reports separate new ownership from 12+ month experience.
Repairs and maintenance are captured, not buried in a star.
Reports stay private while ownership and model details are checked. Contact information is never shown publicly.
Data trust & safety
We show when this record was verified, where its specifications came from, and whether its model number appears in the official CPSC generator-recall dataset.
Prices can change faster than technical specifications. Always confirm the current price, exact model number, and manual before purchase.
CPSC model screening