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
$4,689
Saves $510 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
OUPES Mega 5 · 5,040Wh · 4,000W AC · 7,000W surge
Default. View SKU details
$3,499
OUPES Direct
3
Solar input · None · AC charging only
Add solar panels
$0
None
AC-only
$0
Starter
1× 100W Lightweight Flexible Solar Panel (Black Division)
+$138.99
100W
~72h ☀
Balanced
3× RSP400LSC
+$1,673.97
1200W
~6h ☀
Max
6× RSP220LSC
+$2,039.94
1320W
~5.5h ☀
Warning: 6× RSP220LSC totals 1320W, above the Solar Input 1200W input cap. The MPPT will clip excess; you'll lose 120W in peak conditions but operation is safe.Custom
Configure manually
Solar is optional. Add panels for off-grid runtime.
4
Cables & adapters · auto-suggested
In-box for this configuration
$0
all included
| Item | Why needed | Status |
|---|---|---|
| OUPES Mega 5 ↔ B5 Extra Battery cable | Proprietary; ships with B5 Extra Battery | In box |
RV note: The OUPES Mega 5 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 OUPES Mega 5 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
OUPES Mega 5
via OUPES Direct
$3,499
$3,799
1× B5 Extra Battery
via OUPES Direct
$1,190
Hardwired home backup
Not added · optional
—
Subtotal (MSRP)$5,199
Bundle / flash savings−$510
System total$4,689
Saves $510 vs MSRP today
10,080 Wh total energy capacity
Future upgrade path
Plan ahead. Your config can grow up to 0 Wh on this same OUPES Mega 5 base.
- +3yrAdd more PV — High PV input still has headroom for additional series array