--- product_id: 166027642 title: "HiLetgo 14.8V 4S 30A 18650 Li-ion Lithium Battery BMS PCB Integrated Circuits Protection Board Cell Balance" brand: "hiletgo" price: "¥2419" currency: JPY in_stock: true category: "Hi Letgo" url: https://www.desertcart.jp/products/166027642-hiletgo-14-8v-4s-30a-18650-li-ion-lithium-battery store_origin: JP region: Japan --- # 30A high working current 4S 14.8V Li-ion battery support Multi-layer protection system HiLetgo 14.8V 4S 30A 18650 Li-ion Lithium Battery BMS PCB Integrated Circuits Protection Board Cell Balance **Brand:** hiletgo **Price:** ¥2419 **Availability:** ✅ In Stock ## Summary > 🛠️ Power up smartly — protect, balance, and perform like a pro! ## Quick Answers - **What is this?** HiLetgo 14.8V 4S 30A 18650 Li-ion Lithium Battery BMS PCB Integrated Circuits Protection Board Cell Balance by hiletgo - **How much does it cost?** ¥2419 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/166027642-hiletgo-14-8v-4s-30a-18650-li-ion-lithium-battery) ## Best For - hiletgo enthusiasts ## Why This Product - Trusted hiletgo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smart Cell Balancing:** Maintains battery health by balancing cells for extended lifespan and peak efficiency. - • **Compact & Durable Design:** Sleek 56x48x4mm PCB crafted for longevity and seamless integration into your projects. - • **Precision Voltage Control:** High-accuracy voltage detection ensures optimal charging and discharging cycles. - • **Comprehensive Safety Suite:** Overcharge, over-discharge, short circuit, and overcurrent protections keep your battery safe and reliable. - • **Powerful 30A Current Handling:** Supports demanding battery loads with ease for uninterrupted performance. ## Overview The HiLetgo 14.8V 4S 30A Li-ion Battery BMS PCB is a compact, high-precision protection board designed for 18650 lithium batteries. It features a robust 30A working current, advanced voltage detection, and multiple safety protections including overcharge, over-discharge, short circuit, and overcurrent safeguards. Its integrated cell balancing extends battery life, making it an essential upgrade for professionals seeking reliable and efficient power management. ## Description Specifications: Working current: 30A Balanced current: 60mA Over current: 56A Temperature range: -20 - +80℃ Over charge detection voltage: 4.28+ 0.05 V Over charging voltage: 4.2-4.195V Over discharge voltage: 2.5±0.08 Over charge detection delay time: 0.1s Short circuit detection delay time: 100ms Over current detection delay time: 500 ms Interface definition: Charging port of the plate and the discharge port is the same, both positive and B- connecting battery"-", P- charging port and port on the negative electrode; B-, N-, P- pads are all over the hole, the hole diameter of the pad is 3.5mm; The battery charging detection interface with DC output in the form of needle. Do the same mouth when the N- is not wiring. Package Include: 1 x 14.8V Li-ion Lithium 18650 Battery BMS Packs PCB Protection Board ## Features - 14.8V 4S 30A 18650 Li-ion Lithium Battery BMS PCB Integrated Circuits Protection Board Cell Balance. - High-accuracy voltage detection circuit, fine workmanship and durable. - Working current: 30A .Charging voltage: 16.8V-18V,the best is 17v.Size:56*48*4mm. - Main function: Over charge protection, over discharge protection function, short circuit protection function, over current protection function, balance. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07X28845M | | Best Sellers Rank | #216,381 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #906 in Power Converters | | Brand | HiLetgo | | Color | green black | | Customer Reviews | 4.1 out of 5 stars 126 Reviews | | Input Voltage | 4.2 volts | | Item Weight | 0.02 kg | | Manufacturer | HiLetgo | | Mfr Part Number | 3-01-1548 | | Model Number | 3-01-1548 | | Number of Items | 1 | | Number of Packs | 1 | | Output Voltage | 17 volts_of_direct_current | | Plug Format | Micro USB | | Plug Type | Micro USB | | Power Source | battery | | Unit Count | 1 Count | ## Product Details - **Brand:** HiLetgo - **Color:** green black - **Input Voltage:** 4.2 volts - **Item Weight:** 0.02 kg - **Output Voltage:** 17 volts_of_direct_current ## Images ![HiLetgo 14.8V 4S 30A 18650 Li-ion Lithium Battery BMS PCB Integrated Circuits Protection Board Cell Balance - Image 1](https://m.media-amazon.com/images/I/71L56a0kTsL.jpg) ![HiLetgo 14.8V 4S 30A 18650 Li-ion Lithium Battery BMS PCB Integrated Circuits Protection Board Cell Balance - Image 2](https://m.media-amazon.com/images/I/61cqRsIYDsL.jpg) ![HiLetgo 14.8V 4S 30A 18650 Li-ion Lithium Battery BMS PCB Integrated Circuits Protection Board Cell Balance - Image 3](https://m.media-amazon.com/images/I/71j717LNVGL.jpg) ![HiLetgo 14.8V 4S 30A 18650 Li-ion Lithium Battery BMS PCB Integrated Circuits Protection Board Cell Balance - Image 4](https://m.media-amazon.com/images/I/61+kf8bMInL.jpg) ![HiLetgo 14.8V 4S 30A 18650 Li-ion Lithium Battery BMS PCB Integrated Circuits Protection Board Cell Balance - Image 5](https://m.media-amazon.com/images/I/61f+pjg7tUL.jpg) ## Questions & Answers **Q: Hi all: are the t1,t2 terminals for a temp sensor? if so, what kind of sensor and what is the operational range.** A: There is no manual or any instruction about it, I googled similar boards and also Alibaba/Aliexpress. The only hit - its usually 10k thermistor (look for ntc 10k) and you have to remove smd jumper (0 Ohm) right near these terminals). I did not manage to find any documentation. **Q: Will this bms work with 18650 3.2v lifepo4 batteries?** A: No. Only work with 4.2v **Q: Does it come with the pigtail?** A: Yes, this item contained the pigtail. **Q: Can this bms board handal 16 pack 4x4 solar storage parallel about 40 4s 16 cells in each pack** A: Mine melted ## Frequently Bought Together - HiLetgo 14.8V 4S 30A 18650 Li-ion Lithium Battery BMS PCB Integrated Circuits Protection Board Cell Balance - EASON Stepper Motor Driver TB6600 4A DC9-42V 32 Subdivision for Nema 17, 23 Series Stepper Motor CNC Controller Single Axis Hybrid MicroStepping - DZS Elec 2pcs MP1584EN Mini 3A DC-DC Buck Converter 4.5V-28V to 0.8V-20V Adjustable Voltage Regulator 24V/12V/9V to 12V/5V/3.3V Step-Down Power Module --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/166027642-hiletgo-14-8v-4s-30a-18650-li-ion-lithium-battery](https://www.desertcart.jp/products/166027642-hiletgo-14-8v-4s-30a-18650-li-ion-lithium-battery) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-24*