Build your full OUPES system
Vendor-locked configuration — only components OUPES themselves sells as compatible. We don't suggest cross-brand mixes that the manufacturer doesn't bless.
Running total
$1,897
Saves $1,400 vs MSRP
Why we don't suggest cross-brand mixing: connecting an OUPES battery to a different-brand unit isn't supported by either manufacturer's warranty, and the BMS protocols don't speak to each other. We only configure within a single brand's blessed ecosystem. If you want to mix brands, that's an intentional DIY choice — and you'll want a different tool than this one.
1
Base unit · selected from fit-test
Mega 3 · 3,072Wh · 3,600W AC · 7,000W surge
Default. View SKU details
$1,099
OUPES Direct
2
No expansion batteries published for this base unit yet. Skip to solar panels.4
Cables & adapters · auto-suggested
In-box for this configuration
$0
all included
| Item | Why needed | Status |
|---|---|---|
| XT60 Y-branch (2-way) | Combine 2× 200W panels into single input | In box |
RV note: The Mega 3 has a native TT-30R outlet — a standard 30A RV plugs in directly, no L14-30 adapter needed. For 50A RVs you'd add a TT-30 → 14-50 adapter (~$35) but you'll only get 120V on each leg, not split 240V.
5
Hardwired home backup · optional · 120V loads only
OUPES Power Saver Kit / Inlet Box
OUPES-blessed path for hardwired home backup. Powers selected 120V circuits during outage · electrician install required
Coming soon
Skip if: you'll use the Mega 3 with extension cords or unplug-and-plug into appliances directly. Add if: you want a hardwired path to a transfer-switched 120V subpanel covering specific circuits (furnace, lights, refrigerator).
Your shopping list
2 items · OUPES system
Mega 3
via OUPES Direct
$1,099
$2,299
2× Anker SOLIX PS200
via Anker Direct
$798
Hardwired home backup
Not added · optional
—
Subtotal (MSRP)$3,297
Bundle / flash savings−$1,400
System total$1,897
Saves $1,400 vs MSRP today
6,144 Wh total energy capacity
Future upgrade path
Plan ahead. Your config can grow up to 15,360 Wh on this same Mega 3 base.
- +3yrAdd more PV — High PV input still has headroom for additional series array