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
$2,027.99
Saves $210 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 1 · 1,024Wh · 2,000W AC · 4,500W surge
Default. View SKU details
$699
OUPES Direct
3
Solar input · Starter · 1× 100W Lightweight Flexible Solar Panel (Black Division) parallel on Solar Input
100W Lightweight Flexible Solar Panel (Black Division)
$138.99
None
AC-only
$0
Starter
1× 100W Lightweight Flexible Solar Panel (Black Division)
+$138.99
100W
~14.5h ☀
Balanced
3× RSP220LSC
+$1,019.97
660W
~2h ☀
Custom
Configure manually
✓ PV wiring valid — show math
| Topology | 1 panel in parallel |
| Combined Voc (STC) | 23.5V |
| Cold-derated Voc @ 15°C | 24.21V |
| Combined current (Imp) | 5.2A |
| Combined wattage | 100W |
- · 1× 100W Lightweight Flexible Solar Panel (Black Division) in parallel is within all Solar Input limits.
4
Cables & adapters · auto-suggested
In-box for this configuration
$0
all included
| Item | Why needed | Status |
|---|---|---|
| Mega 1 ↔ B5 Extra Battery cable | Proprietary; ships with B5 Extra Battery | In box |
RV note: The Mega 1 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 1 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
3 items · OUPES system
Mega 1
via OUPES Direct
$699
1× B5 Extra Battery
via OUPES Direct
$1,190
1× 100W Lightweight Flexible Solar Panel (Black Division)
via Renogy Direct
$138.99
Hardwired home backup
Not added · optional
—
Subtotal (MSRP)$2,237.99
Bundle / flash savings−$210
System total$2,027.99
Saves $210 vs MSRP today
2,048 Wh total energy capacity
Future upgrade path
Plan ahead. Your config can grow up to 5,120 Wh on this same Mega 1 base.
- +1yrAdd another B5 Extra Battery → 3,072 Wh total · ~$1,190 · longer autonomy
- +3yrAdd more PV — High PV input still has headroom for additional series array