⚡ B2B SOLAR STORAGE FACTORY · SHENZHEN

SunStone | Shenzhen B2B Solar Energy Storage Manufacturer

Portable / Balcony / Home ESS | Full EU & US Certifications | OEM/ODM Available — Flexible MOQ | 5-Year Warranty | Global Shipping

👁 View Products

🌎

Shenzhen Factory · Global Delivery

30+

Countries

5,000+

Units Shipped

98%

On-Time

📦

5,000+

Units Shipped Worldwide

🌎

30+

Countries Served

🛡

5 Years

Warranty Coverage

⏱

98%

On-Time Delivery Rate

CEUKCAVDE IEC62619UL2743UN38.3 RoHSFCC

⚡ Core Products

Three product lines covering portable power stations, balcony solar storage, and household energy storage systems

Portable

1500Wh Portable Power Station

Outdoor & emergency backup. IP65, multi-charging, APP control. Grade-A LiFePO4 cells.

IP65Multi-ChargingAPP Control

Capacity: 1,536Wh

Output: 1,800W

Battery: LiFePO4 6000cyc

Weight: 14.5kg

Charging: Solar/AC/Car

Cert: CE/UKCA/UL/FCC

$899 – $1,299 FOB Shenzhen

Cycle Life: >6,000

DOD: 90%

Warranty: 5 Years

MOQ: 10 Units

📄 Datasheet

Balcony

Balcony 2kWh ESS-2000

EU bestseller! Plug & play, 30-min install, 2-3 years payback. Wall-mounted balcony storage.

Plug & Play30-Min Install2-3 Yr Payback

Capacity: 2.0kWh (max 6kWh)

Output: 800W

Battery: LiFePO4 6000cyc

Install: 30 min wall-mount

Payback: 2-3 years

Cert: CE/VDE/IEC

€2,699 – €3,999 FOB Shenzhen

Cycle Life: >6,000

DOD: 90%

Warranty: 5 Years

MOQ: 10 Units

📄 Datasheet

Household

10kWh Wall-mounted ESS-10000

Whole house power supply. Expandable to 30kWh, UPS quick switch, 10-year design life.

ExpandableUPS <10ms10-Yr Design

Capacity: 10.24kWh

Output: 5kW (10kW peak)

Battery: LiFePO4 6000cyc

Voltage: HV 380-480V

APP: Remote monitoring

Cert: CE/VDE/IEC

€4,499 – €5,999 FOB Shenzhen

Cycle Life: >6,000

DOD: 95%

Warranty: 5 Years

MOQ: 10 Units

📄 Datasheet

View Full Product Line →

🌎 Trusted by Partners Worldwide

🇪🇺 Germany Distributor

🇬🇧 UK Energy Brand

🇺🇸 US Outdoor Retailer

🇦🇼 AU Project Developer

🇮🇹 NL Balcony Distributor

🇩🇪 FR Solar Installer

🇪🇨 ES Residential Integrator

🇯🇵 SE Energy Company

📝 Partner Success Stories

Real results from real B2B partnerships around the world

🇪🇺 EU Balcony Project

Balcony ESS for EU Residential Market

A German distributor launched our 2kWh balcony ESS under their brand. White-label APP, Rotterdam warehouse, 3-day delivery nationwide.

📈 500+ units sold in first 6 months

🇦🇼 AU Off-grid System

Off-Grid Home Battery Solutions

An Australian installer partnered for household ESS. Custom firmware for local grid, Sydney warehouse for fast fulfillment.

📈 200+ homes powered off-grid

🇺🇸 US Outdoor OEM

Portable Power Station for Outdoor Retail

An American brand OEM'd our 1500Wh station with custom branding, UL certification, and REI distribution channel access.

📈 1,000+ units in first year

View All Case Studies →

💬 What Our Partners Say

Real feedback from B2B clients worldwide

SunStone's quality control is exceptional. Every batch we've received has been spot-on, and their engineering team was quick to implement our custom BMS requirements.

Mark K.

CTO, German Energy Distributor

The white-label program got us to market in 3 weeks instead of 6 months. We have our own brand, APP, and packaging — and the MOQ was flexible enough for a startup.

Sarah L.

Founder, AU Solar Startup

We switched to SunStone after quality issues with our previous supplier. Their UL-certified products gave us confidence to expand into the US market.

James R.

Procurement Manager, US Outdoor Brand

🏘 Shenzhen Factory Tour

Shenzhen Factory | 30 mins from Airport | 10,000+ sqm | Large Production Capacity & Strict QC

⚙ Automated Production Line

📊 QC & Testing Lab

📦 Warehouse & Logistics

🔬 R&D & Innovation

▶

Play Factory Video Tour

15-30 sec factory walkthrough · See our production line in action

👉 Factory Details →

📖 Frequently Asked Questions

Common questions from B2B buyers worldwide

What is the minimum order quantity (MOQ)?▼

Sample order: 1-3 units for testing.
White-label: 10 units per model.
OEM custom: 20-50 units (depending on customization level).

What certifications do your products have?▼

All products are fully certified: CE (EU), UKCA (UK), VDE (Germany), IEC62619, UL2743 (US), UN38.3 (transport), RoHS, and FCC. Full certification documents provided for customs clearance.

How long does production and shipping take?▼

Production: 25-35 days (sample order 7-10 days).
Sea freight: 12-14d to US West Coast, 18-22d to EU (Rotterdam).
Air freight available: 3-5 days (for urgent orders).

What is your after-sales service policy?▼

5-year warranty on all products. Spare parts warehoused in EU (Rotterdam) and US (Los Angeles). Remote technical support available 24/7 for partners. Full RMA process with replacement units shipped within 48 hours.

Can I visit the factory?▼

Absolutely! Our facility is located in Shenzhen's Nanshan district, 30 minutes from Shenzhen International Airport. Video tours also available for remote partners. Schedule a visit →

What are your OEM/ODM capabilities?▼

Full OEM service: Custom design, logo, packaging, user manual, and white-label APP. MOQ from 20 units. Engineering support for custom BMS firmware, hardware modifications, and certification assistance.

View Full FAQ →