Sunstone Power

What Sunstone Power does

Sunstone Power Industry Co., Ltd. is a privately held Chinese battery and energy storage manufacturer founded in 2004 and headquartered in Shenzhen, with two production facilities in China and wholly-owned sales subsidiaries in Germany (Sunstone Power Industrial GmbH, established 2017) and Indonesia (PT. Solid Power Energi Indonesia). The company has been involved in the production and sale of batteries, energy storage systems, and related accessories for more than 20 years, operating under ISO9001 and ISO14001 certifications. Its product portfolio spans multiple battery chemistries — VRLA AGM (SPT, ML series), gel (MLG series), lead carbon (LCB, HT series), OPzV tubular gel (OPG series with up to 25-year design life), and LiFePO4 lithium (SLPO series in 12V and 48V configurations) — complemented by hybrid, off-grid, and pure sine wave inverters (SMCIH-HBH, SMCIH-H, SIH series), mono solar panels (SPMB series), battery chargers, and the SBMS-LAB battery management system.

The company's go-to-market combines direct enterprise supply relationships with exclusive global distributors. Lead-acid batteries are widely used by major European UPS manufacturers including ABB, Schneider Electric, Socomec, and Legrand, with pricing quote-based and not publicly disclosed. The German team provides local sales support, technical assistance, and fast shipping for European enterprise customers. Distribution beyond direct markets is handled by nine exclusive distributors worldwide, and the company participates in industry exhibitions such as The smarter E Europe and Solar Solutions International. The SLPO 48V LiFePO4 line supports RS485/CAN communication with inverter protocols from Victron, SMA, Growatt, and Deye, while the SLPO 12V line offers Bluetooth monitoring via dedicated Android and iOS apps, enabling integration into third-party solar ecosystems.

Revenue is generated entirely through hardware sales of batteries, inverters, solar panels, chargers, and battery management accessories, with applications spanning commercial and industrial UPS, off-grid and hybrid solar energy storage, telecommunications, data centers, power plants, mobile/RV, and residential backup power. The company is privately held with no disclosed external investors, funding rounds, or financial statements, limiting visibility into its scale and capital structure beyond operational signals such as 400+ completed projects and 20+ years of continuous operation.

Name

Sunstone Power

Legal name

SUNSTONE POWER INDUSTRY CO., LTD.

Website

https://sunstonepower.com

Company type

Private

Founded year

2004

Operating status

Operating

Headcount range

51–100 employees

Short description

Sunstone Power is a privately held Chinese battery and energy storage manufacturer, founded in 2004, producing lead-acid and LiFePO4 batteries, inverters, solar panels, and battery management systems. It supplies major European UPS OEMs and global distributors from factories in China and sales offices in Germany and Indonesia.

Ownership category

akta.pro rank

Product category

Battery Energy Storage

NAICS

Battery Manufacturing (33591)

akta.pro primary industry

Battery Cells (Li-ion, LFP, Sodium-ion, Lead-acid, NiMH) (IMAGAHAA)

akta.pro secondary industries

Battery Modules & Packs (Industrial/Commercial pack assembly) (IMAGAHAB), Solar Inverters, Power Optimizers & MLPE Manufacturing (EUAMAHAB)

Keywords

• Lead-acid batteries
• Lithium iron phosphate batteries
• Solar energy storage
• Hybrid solar inverters
• Off-grid inverters

Headquarters

HQ city

Shenzhen

HQ country

China

HQ region

Asia

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Battery Products: Manufacturing and sales of lead-acid batteries (AGM, Gel, Lead Carbon, OPzV, High-Temperature series) and lithium batteries (LiFePO4 series) for various applications including UPS, solar energy storage, telecommunications, and backup power systems.
2. Solar Inverters: Production and sales of power inverters including hybrid inverters, off-grid inverters, and pure sine wave inverters for solar energy systems and backup power applications.
3. Solar Panels: Sales of solar panel products including SPMB series mono solar panels for residential, RV, and commercial applications.
4. Battery Accessories: Sales of battery chargers for lead-acid and lithium batteries, monitoring software, and battery management accessories.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels3 records

Core offering

Sunstone Power manufactures and sells batteries, energy storage systems, and accessories across lead-acid (AGM, Gel, Lead Carbon, OPzV tubular gel) and lithium (LiFePO4) chemistries, complemented by solar inverters (hybrid, off-grid, power inverters), mono solar panels, battery chargers, and battery management systems. These products are sold to commercial and industrial UPS customers, solar energy storage installers, telecommunications operators, data centers, power plants, and residential/mobile applications through exclusive distributors and direct enterprise sales globally.

Product overview

Sunstone Power is a battery and energy storage manufacturer with over 20 years of experience, operating 2 factories in China and 3 companies in China, Germany, and Indonesia. The product portfolio spans three battery chemistry families — Lead-Acid (AGM via SPT and ML series; Gel via MLG series; Lead Carbon via LCB and HT series; OPzV tubular gel via OPG series) and Lithium (LiFePO4 via SLPO series in 12V and 48V configurations) — complemented by three inverter families (SIH power inverters, SMCIH-H off-grid inverters, and SMCIH-HBH hybrid/3-phase inverters), SPMB mono solar panels, SCLL/SCLP/SCLA battery chargers, and the SBMS-LAB lead-acid battery management system. The SLPO LiFePO4 batteries with BMS support selectable inverter protocols (Victron, SMA, Growatt, Deye) enabling integration with third-party solar inverters, while the hybrid and off-grid SMCIH inverter families provide the power conversion layer for complete solar energy storage systems.

Differentiator

Problem solved

Functional benefit

Products and services

• SLPO Series 48V Lithium Battery SLPO Series 48V LiFePO4 batteries (SLPO48-100 at 4.8kWh and SLPO48-200 at 9.6kWh) are rechargeable lithium iron phosphate battery packs with RS485 & CAN BMS ports supporting selectable inverter protocols (Victron, SMA, Growatt, Deye) for PV system management. Designed for solar systems and UPS with up to 4000 cycle life at 80% DOD.
• SLPO Series 12V Lithium Battery SLPO Series 12V LiFePO4 batteries (SLPO12-50N, SLPO12-100, SLPO12-100N, SLPO12-150N, SLPO12-200N, SLPO12-300N) are rechargeable lithium iron phosphate battery packs with Bluetooth monitoring (Android & iOS), BMS protection, up to 4000+ cycles, and IP54 rating. Suitable for backup power, UPS, solar, and mobile home applications.
• SBMS-LAB Battery Management System SBMS-LAB is an advanced real-time monitoring VRLA battery management system with automated individual battery parameter measurement, early alarm generation for failing batteries, and modular design supporting unlimited expansion. Complies with IEEE1188-2005. Manages up to 254 block batteries per control module with touch panel (7-inch) or rack mount (19-inch/10-inch) options.
• SMCIH-HBH(S) Series Hybrid Inverter SMCIH60-5.5KW-48V-HBH(S) is a 5.5kW (6.5kW peak) 48V hybrid inverter with 2 MPPT trackers, pure sine wave output, self-consumption and grid-feed-in modes, programmable supply priority, and programmable battery charging current. Supports parallel operation up to 6 units for larger power demands.
• SMCIH-HBH(T) Series 3-Phase Hybrid Inverter SMCIH200-10KW-48V-HBH(T) (10kW) and SMCIH300-15KW-48V-HBH(T) (15kW) are 3-phase hybrid inverters with MPPT, grid-tie with backup, pure sine wave output, RS-232/USB communication, and optional SNMP/Modbus/AS-400 cards. Support parallel operation for expanded power capacity.
• SMCIH-H Series Off-Grid Inverter SMCIH-H series off-grid inverters (4kW/24V, 6kW/48V, 8kW/48V, 11kW/48V) with MPPT solar charging up to 150A, pure sine wave output, Wi-Fi monitoring, USB On-the-Go function, RS485 for BMS, and parallel capability up to 6 units. Designed for off-grid PV systems without grid feed-in.
• SIH Series Power Inverter SIH1200-12V is a 12V 1200W (2400W peak) vehicle-mounted pure sine wave inverter with dual AC sockets, dual USB ports, and Type-C PD3.0/QC3.0 fast charging. Features LCD display, intelligent fan cooling, input reverse polarity protection, and 93% efficiency for automotive, boat, and outdoor applications.
• SPMB Series Mono Solar Panel SPMB series mono full-black solar panels available in 100W, 200W, 340W, and 405W models for RV, camping, balcony, and roof installations.
• SCLL Series Battery Charger SCLL12-6C is a 12V 6A portable multi-chemistry battery charger (6A for Pb/AGM/GEL, 4.5A for LiFePO4) with LCD display, adaptive charging, low-temperature charging, IP64 protection, and CE/RoHS certification. SCLA6/12-1.5 is a 6V/12V 1.5A lead-acid charger with auto maintenance mode for WET, AGM, and GEL batteries.
• SCLP Series LiFePO4 Battery Charger SCLP12-10 (14.4V 10A) and SCLP12-20 (14.4V 20A) are LiFePO4 battery pack chargers with fully automatic 4-stage charging, automatic cut-off protection against overcharging, 100% burn-in testing, and EN60950/EN60335 safety certifications.
• SPT Series AGM Battery SPT series is a first-generation VRLA AGM battery family (6V and 12V models ranging from 4AH to 20AH) designed for general-use applications with 5-year design life, low self-discharge (3%/month), and flame-retardant ABS case options.
• ML Series Mainline AGM Battery ML series is a long-life AGM VRLA battery family (12V models from 24AH to 270AH) with 10-year design life, developed alloy plates for anti-corrosion performance, designed primarily for UPS and uninterruptible power supply applications.
• MLG Series Gel Battery MLG series is a cycle-operation gel battery family (12V models from 24AH to 270AH) with 12-year design life, excellent deep-discharge tolerance for repeated charge/discharge cycles, suitable for island PV power plants, backup operation, security systems, and emergency lighting.
• LCB Series Lead Carbon Battery LCB series (LCB6-250 at 6V 250AH, LCB12-100 at 12V 100AH, LCB12-165 at 12V 165AH) combines VRLA and supercapacitor technology with a composite negative electrode of carbon and conventional materials, enabling fast charge/discharge, extended cycle life several times longer than normal lead-acid, and waterproof/salt-sprayproof modular design for harsh environments.
• HT Series High-Temperature Lead Carbon Battery HT series (HT6-250 at 6V 250AH, HT12-100 at 12V 100AH, HT12-165 at 12V 165AH) features high-temperature resistant lead carbon technology with ultra-long cycle life for partial state of charge (PSOC) operation, designed for harsh environments with waterproof and salt-sprayproof properties.
• OPG Series OPzV Tubular Gel Battery OPG series is an OPzV standard battery family using valve-regulated immobilized gel and tubular plate technology per DIN standards, offering 25-year design life at 25C. Available in 2V single cells from 200AH to 3000AH for solar, telecommunications, and large-scale energy storage applications.

Quantifiable outcome

• Over 400+ projects completed
• +3 more outcomes

Named customers4 records

Segments7 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

Feature7 records

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Renogy: Renogy sells complete solar + lithium energy storage systems (panels, LiFePO4 batteries, inverters/chargers) targeting residential, RV, and off-grid customers — directly comparable to Sunstone's SLPO + SMCIH + SPMB bundled offering.
• EVE Energy: EVE Energy is a major Chinese manufacturer of LiFePO4 cells and battery packs for ESS, EVs, and consumer applications, directly competing with Sunstone in LiFePO4 cells/packs for solar and backup storage.
• Victron Energy: Victron Energy makes off-grid inverters, chargers, and battery monitors and is both a competitor (off-grid inverter/energy systems) and a key integration partner for Sunstone's SLPO LiFePO4 batteries.
• Pylontech: Pylontech is a Chinese LiFePO4 battery manufacturer focused on residential and small-commercial stackable energy storage with inverter-brand integrations (Victron, SMA, Growatt, Deye) — the same playbook as Sunstone's SLPO line.
• Growatt: Growatt is a global hybrid/off-grid inverter and storage manufacturer targeting residential and small-commercial solar — directly overlapping with Sunstone's SMCIH-HBH hybrid inverter and bundled battery offerings.

Broad incumbents

• BYD: BYD manufactures LiFePO4 cells and modules plus integrated solar/storage systems at massive scale, competing with Sunstone across residential storage, C&I storage, and battery cell supply.
• GS Yuasa: GS Yuasa is a large Japanese lead-acid and lithium battery manufacturer serving automotive, motorcycle, UPS, and industrial backup markets — overlapping directly with Sunstone's VRLA and LiFePO4 industrial backup lines.
• CATL: CATL is the world's largest Li-ion (including LFP) battery manufacturer, supplying cells and packs into ESS, EV, and industrial markets — a dominant competitor to Sunstone's LiFePO4 cell and pack business.
• EnerSys: EnerSys is a global incumbent in industrial stored-energy solutions (UPS, telecom, motive power) and competes head-to-head with Sunstone's ML AGM and OPzV lines for large UPS and telecom accounts.
• Trojan Battery: Trojan Battery is a long-established US lead-acid deep-cycle battery brand for solar, RV, floor cleaning, and motive applications, competing with Sunstone's deep-cycle Gel and Lead Carbon product families.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/sunstone_power
• Facebookfacebook.com/sunstonepower
• LinkedInlinkedin.com/company/sunstone-power-industry-co-ltd

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Subsidiaries2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Sunstone Power