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Focus on the research & development, production, sales & service of smart chargers & other charging devices

Small Lithium Pin Battery

Dlyfull is a professional manufacturer of high-quality micro lithium pin type batteries. Our lithium pin type batteries mainly fall into two categories: rechargeable and non-rechargeable. Among them, rechargeable batteries are mainly used in various micro intelligent terminal products such as the Internet of Things (IoT), smart wearables, hearing aids, and smart pens. Non-rechargeable batteries are mainly applied to outdoor fishing tackle (such as electronic fishing floats, rod tip lights, fish luring lights, etc.), outdoor illuminated nocks, as well as luminous toys (including luminous badminton, luminous pickleball, etc.).

Battery Charger & Tester

Dlyfull offers a full line of battery chargers and battery testers, from basic to intelligent models. Our chargers safely and efficiently charge all mainstream rechargeable batteries. The testers analyze battery health for both rechargeable and non‑rechargeable consumer batteries, helping users manage home battery life, improve efficiency, and reduce waste. All products meet strict global safety and compliance standards. Dlyfull delivers innovative, reliable charging and battery testing solutions trusted by discerning consumers worldwide.

Fishing & Hunting Electronics

Leveraging our small lithium pin battery’s unique design, we developed innovative night fishing and archery electronics. Rechargeable and reusable, they replace disposable chemical glow products, reduce waste, and make outdoor sports more enjoyable—eco‑friendly and sustainable

Innovative Electronics

Lithium Button Cell

Dlyfull offers high‑quality 3V lithium coin batteries with excellent pulse and continuous discharge performance. Ideal for ESL displays, key fobs, remotes, scales, smart home devices—reliable power and long life.

Flagship Products

UN4

Featuring independent 4-slot charging, pulse charging technology, dual current options, an intuitive LCD display, and comprehensive safety protections, the UN4 delivers reliable and efficient multi-battery charging performance: 1. 4-slot independent charger for Ni-MH/Ni-Cd 1.2V AA/AAA rechargeable batteries 2. Clear LCD display – shows battery voltage, 4-level capacity indicator, and charging status for each slot at a glance 3. Dual charging current options: Slot 1 & 4 support 1.0A fast charging; Slot 2 & 3 support 0.5A charging – ideal for smaller capacity batteries 4. Pulse charging technology – effectively prevents battery polarization effect for longer battery life 5. Multiple charge termination detections: 0dV/-dV cut-off, maximum voltage, maximum time, and over-temperature protection for safe and complete charging 6. Comprehensive safety protections: overcharge protection, short-circuit protection, reverse-polarity protection, and alkaline battery identification (alerts when non-rechargeable batteries are inserted) 7. Type C input (5V/2A) – easy and convenient to use 8. Recommended slot selection: CH1/CH4 for AA batteries; CH2/CH3 for AA/AAA batteries

B2

Dlyfull's compact multi-type battery tester features an 18-segment LCD display, supporting a wide range of battery types. With clear visual indication and easy operation, it delivers quick and reliable battery status checking for household batteries: 1. Multi-type battery tester for 1.5V alkaline/primary batteries, 3V lithium batteries, 6V assembled batteries, and 9V batteries 2. Compatible with CR-V3, 2CR5, CR-P2, CR2, CR123A, 6F22, AA, AAA, C, D, N, and 9V Ni-MH batteries 3. 18-segment LCD display with clear POOR/WEAK/GOOD indication for easy battery status interpretation 4. Test results retained on display for 60 seconds after battery removal 5. Powered by AAA 1.5V alkaline battery (recommended not to use rechargeable batteries) 6. One battery tested at a time for accurate results 7. Compact and lightweight design: 132.5×88×24mm, 100g

A4

Dlyfull’s high-end intelligent chargers feature dependent charging, LCD display, and multiple modes ( charge , discharge , refresh , capacity test etc). With optimized current, mixed‑battery support, and comprehensive safety, they deliver superior charging performance: 1. 4+2-slot LCD intelligent multi-function charger 2. supports charging for 5 different types of batteries 3. the fourth slot supports charge, discharge, refreh and capacity test functions 4. dual input design: AC power cord + DC12/3A 5. blue LCD display: battery slot number, battery type, time, voltage, capacity, progress percentage, working mode, internal resistance, current 6. multiple intelligent overcharge protection 7. three buttons (Current, Slot, Mode) for manual operation including function mode selection, charging current selection, and battery type selection 8. maximum support for D-type/32650 batteries; longest supported battery length is 71mm 9. certificates: CE / ROHS /FCC 10. support OEM private brand

BC1 Charger Kit

The LIR type Li-ion batteries can cycle 40~50 times. Featuring an ultra-small size, it serves as an ideal power source for outdoor fishing , hunting products and other products ( electronic fishing floats, rod tip lights, fishing lights, and lighted nocks etc.) Features as below: * ultra-lightweight * eco‑friendly and sustainable * about 40~50 cycles * bundle package ( batteries and charger ) * widely used for outdoor fishing and hunting products

UM4

1. 4 Slots LCD Intelligent Multi-Function Charger 2. Supports charging for 3 different types of batteries 3. The fourth slot supports charge and button beep alert functions 4. Type-C input design,indoor & outdoor Portable, user-friendly 5. Black screen with white character LCD Display: battery slot number, battery type, time, voltage, capacity, current,charging percentage 6. Multiple intelligent overcharge protection 7. One button for selecting battery type, turning sound on/off and other function settings.

UT4

1. 4 Slots LCD Intelligent Multi-Function Charger 2. Supports charging for 3 different types of batteries 3. The fourth slot supports charge, discharge, refreh and capacity test, beep voice remind functions 4. Type-C input design,indoor & outdoor Portable, user-friendly 5. Black screen with white character LCD Display: battery slot number, battery type, time, voltage, capacity, working mode, internal resistance, temperature 6. Multiple intelligent overcharge protection 7. Four buttons (Slot, Mode) for manual operation including function mode selection, and battery type selection; 8. Fully charged lithium-ion battery can be inserted into Slot 1, which also features USB power bank output function. 9. Maximum support for D-type/32650 batteries; longest supported battery length is 71mm

BR316

The BR (CFx) type lithium pin type battery is the ultra-small size, it serves as an ideal power source for outdoor fishing , hunting products and other products ( electronic fishing floats, LED pickballs, fishing lights,lighted nocks etc.) Features as below: * ultra-lightweight * ultra-small size * high energy density * high capacity * widely used for outdoor fishing products

LIR435 Charger Kit

The LIR type Li-ion batteries can cycle 40~50 times. Featuring an ultra-small size, it serves as an ideal power source for outdoor fishing , hunting products and other products ( electronic fishing floats, rod tip lights, fishing lights, and lighted nocks etc.) Features as below: * ultra-lightweight * eco‑friendly and sustainable * about 40~50 cycles * bundle package ( batteries and charger ) * widely used for outdoor fishing and hunting products

OEM Service

OEM Service

Dlyfull has developed many new products based on OEM and ODM projects with CE, ROHS, UL, GS, FCC, SAA, PSE certifications.

ODM service

ODM service

Reliable global manufacturing services with 20+ years of R&D experience and international quality standards.