About ESC

Your Reliable Partner for Replacement Batteries and Fast-Charging Products

About ESC

Your Reliable Partner for Replacement Batteries and Fast-Charging Products

Since 2016, ESC has specialized in replacement batteries for the global B2B market. We started with iPhone replacement batteries and gradually expanded into Android phone batteries, tablet batteries and laptop batteries. Today, our product portfolio covers more than 3,000 self-developed models for major device brands.

We support flexible MOQs and mixed-model orders, with standard battery orders normally completed within seven days. Based on customer feedback, our product defect rate is controlled below 1%. Each iPhone battery model is supported by an individual CE certificate, while applicable products are also available with RoHS, FCC, MSDS and UN38.3 documentation.

Since 2022, ESC has invested in fast-charging power bank development. Our products focus on proprietary private-mold designs, high-power fast charging, stable thermal performance and compatibility with mainstream charging protocols.

We serve wholesalers, private-label brands, device refurbishers, chain repair centers, premium e-commerce sellers, high-end retailers and corporate gift companies.

Your Reliable Partner for Replacement Batteries and Fast-Charging Products

Our Core Strengths

Since 2016

Professional Battery Experience

Focused on replacement batteries for iPhone, Android phones, tablets and laptops, with extensive experience serving professional B2B buyers.

3,000+ Models

Extensive Product Coverage

More than 3,000 self-developed battery models help customers consolidate suppliers and source products for multiple brands from one partner.

Flexible MOQ

Mixed-Model Order Support

Flexible order quantities and mixed-model purchasing are available for wholesalers, repair chains, refurbishers and growing private-label brands.

Within 7 Days

Fast and Stable Delivery

Standard replacement battery orders are normally completed within seven days, subject to model availability, quantity and customization requirements.

Below 1%

Controlled Defect Rate

Strict cell grading, capacity testing, BMS inspection, aging tests and shipment checks help maintain a customer-reported defect rate below 1%.

Private-Mold R&D

Fast-Charging Power Bank Solutions

Proprietary power bank designs support mainstream fast-charging protocols, intelligent power distribution and controlled heat generation.

Product Expertise

Replacement Battery Solutions

Replacement batteries for iPhone, Samsung, Huawei, Xiaomi, OPPO, vivo, Google, Motorola and other smartphone brands, as well as tablets and laptops.

Fast-Charging Power Banks

Private-mold wired and wireless power banks designed for fast charging, protocol compatibility, stable output and differentiated brand positioning.

Certification Support

Individual CE certificates for iPhone battery models, with RoHS, FCC, MSDS and UN38.3 documentation available for applicable products.

OEM and ODM Services

Support for logo printing, packaging design, private labeling, product specifications, industrial design, structural development and private-mold projects.

Our Services

Integrated replacement battery and fast-charging product solutions for wholesalers, brands, refurbishers, repair chains and premium retail customers.

1. Replacement Battery & Fast-Charging Solutions

ESC provides replacement batteries for smartphones, tablets and laptops, together with fast-charging and wireless power bank solutions. With more than 3,000 self-developed battery models, we help customers simplify sourcing, expand product coverage and respond quickly to changing market demand.

2. Independent Design & Customization

Our services extend from standard product supply to customized development. We support battery specifications, product appearance, structural design, charging solutions, colors, logos and packaging, helping private-label customers create differentiated replacement batteries and power banks for their target markets.

3. Quality Control & Safety Assurance

Our quality-control process covers incoming material inspection, cell grading, capacity testing, BMS performance, charging and discharging, aging tests and final shipment inspection. Based on customer feedback, the defect rate of our replacement batteries is controlled below 1%.

4. Product Development & Technical Support

Our experienced product and technical team supports model selection, compatibility evaluation, charging-protocol development, power distribution and thermal-performance testing. We work closely with customers to turn product requirements into stable, manufacturable and market-ready solutions.

5. Flexible Supply & Fast Delivery

We support flexible MOQs, mixed-model battery orders and stable production planning for wholesalers, brands, refurbishers and repair chains. Standard replacement battery orders can normally be completed within seven days, subject to model availability, order quantity and customization requirements.

6. Flexible SKD Power Bank Solutions

ESC provides flexible SKD solutions for power bank brands that require local assembly or lower import costs. Services can include PCBA solutions, charging modules, battery cells, housings, displays, cables and key components, with technical support from sample development to mass production.