Skip to product information
1 of 7

5S 4S 3S BMS 100A 21V 18V 16.8V 12V 18650 Li-ion LMO Ternary Lithium Battery Protection Circuit Board Balance Charging

5S 4S 3S BMS 100A 21V 18V 16.8V 12V 18650 Li-ion LMO Ternary Lithium Battery Protection Circuit Board Balance Charging

"Amazing"
googleImage
Rated 4.8/5 on
Regular price $15.99 AUD
Regular price Sale price $15.99 AUD
Sale Sold out
.
30-day money back guarantee, no questions.
Shipping & Returns
Exceptional Cutting-Edge Performance.
Unmatched Premium Quality & Reliability.
Revolutionary Intelligent Technology.

10% OFF

New Customers (use code: WELCOME10)

FREE Delivery

For first-time users (use code: DELIVERY)

Limited time offer - 25% off!
Free Delivery and Returns Box
Davooda https://davooda.com
Free Delivery and Returns
Free no contact delivery for all orders
Delivered in: 5-10 working days

Product Information

At Electraaa, we bring you high-quality electronic products that combine smart technology with reliable performance. Every item in our collection is carefully selected for durability, ease of use, and value — making your daily life simpler, faster, and more convenient.

Whether it’s for home, work, or on the go, our electronics are built to deliver:

  • ⚡ Reliable performance you can count on
  • 🔋 Energy-efficient designs that last longer
  • 📱 Modern features for a seamless user experience
  • 🛡️ Quality-tested materials for long-term durability

From practical gadgets to essential accessories, our products are made to enhance your lifestyle and keep you connected. Smart, affordable, and designed with you in mind — that’s Electraaa.

Shipping Information

We aim to make your shopping experience smooth and reliable. All orders are carefully processed and shipped within our standard delivery window.

  • 🚚 Delivery Time: 7–10 business days
  • 📦 Order Processing: Orders are packed and dispatched promptly to ensure timely delivery
  • 🌍 Shipping Locations: We ship to all major regions
  • 🔔 Tracking: You’ll receive tracking details as soon as your order is shipped
  • 🛡️ Secure Packaging: All items are packaged with care to protect your electronics during transit

If you have any questions about your shipment or delivery, feel free to contact our support team — we’re always here to help!

Refunds & Returns

We want you to feel confident when shopping with Electraaa. If you’re not completely satisfied with your purchase, we offer a hassle-free return process.

  • 🔄 30-Day Money Back Guarantee: If you don’t like the product for any reason, simply return it within 30 days of purchase for a full refund.
  • 📦 Return Condition: Items should be returned in their original condition with all accessories included.
  • 💰 Fast Refunds: Once we receive and inspect the returned item, your refund will be processed promptly to your original payment method.
  • ✉️ How to Start a Return: Contact our support team with your order number and we’ll guide you through the simple return process.

Your satisfaction matters to us — shop with peace of mind knowing you're protected by our guarantee.

View full details

Product Details

5S 4S 3S BMS 100A 21V 18V 16.8V 12V 18650 Li-ion LMO Ternary Lithium Battery Protection Circuit Board Balance Charging

5S 4S 3S BMS 100A 21V 18V 16.8V 12V 18650 Li-ion LMO Ternary Lithium Battery Protection Circuit Board Balance Charging

3S 4S 5S 100A 3.2v lithium iron phosphate battery protects the circuit board with equalization

Product selling point:

1. Use high quality materials, durable

2. Lithium battery protection panel specially designed for lithium phosphate, ternary lithium battery, lithium cobalt acid, lithium manganate battery pack

3. Adopt mature protection circuit, special IC and support break protection

4. High quality high-current ultra-low internal resistance MOS (single MOS internal resistance as low as 3 mm)

5. With perfect and stable charge and discharge protection functions, cell hardware balance treatment, balance current appropriate, balanced heat reasonable, does not affect the performance of the battery pack

6. A wide range of applications: lithium iron phosphate, ternary lithium battery, lithium cobalt acid, lithium manganese acid battery pack

Parameters:

Pin mode:

P- : load negative C- : charger negative B- : battery negative

Actual Operation Guide

Output current: 80A; With a 60

Note: Lithium battery should be charged with special charger of lithium battery, do not use charger of lead-acid battery, because lead-acid charging may have high voltage breakdown of MOS tube of protection plate, resulting in overcharging and no protection of protection plate.

(1) 3-series split-port wiring method (refer to the 3-series split-port wiring diagram)

(1) Connect the three battery packs in series according to the battery connection method in the three-string connector wiring diagram.

(2) Connect the negative pole of the charger to the C-connection of the protection plate, and the negative pole of the load to the p-connection.

③ Connect the charger with the positive terminal of the load and the positive terminal of the 3 string battery.

(4) Connect the positive terminals of the three battery packs with B+, B4, and B3 in sequence with three wires according to the three-string connector wiring diagram.

⑤ Connect the negative electrode of 3 strings of batteries to B-. B1,B2, and B-short.

⑥ All wires are connected according to the 3-string connector wiring diagram and check whether they are correct. After confirming that they are correct, they can be used.

⑦ In the process of use, when the indicator on the protection board is on, it means that the corresponding battery pack is in a balanced working state (that is, the battery is not balanced at this time).

Frequently Asked Questions:

1. Can I use this protection plate for my battery?

A: Can you use this protection board has two problems to consider: how many batteries you have, you need to buy the corresponding number of series of protection board. Second, what is your battery made of? We have lithium iron phosphate and polymer protection plates with two parameters. If your battery is lithium iron phosphate with a nominal 3.2V, you need to choose lithium iron phosphate with a nominal 3.2V in the classification. If it is polymer (ternary, cobalt acid, lithium manganese acid battery) with a nominal 3.6V (or 3.7V), please choose polymer 3.7V classification.

2. How can I tell what material my battery is made of?

Answer: You can take a look at your battery nominal voltage, lithium iron phosphate battery is generally standard 3.2V, other batteries are generally standard 3.6V or 3.7V, you can also directly ask the seller of batteries is what material of the battery, many buyers say my battery is 18650 or 26650 soft package, this is the appearance, not the material oh! We can't determine your battery protection parameters from this.

3. How many protective panels should I choose?

Answer: the number of Ann protection board depends on your load power, our protection board, if you use the split output, the output current is about 70A, the power is about 800W, if the same output, the output current is 50A, the power is about 600W.

4, my battery is 20AH, can I use this protection board?

Answer: YOUR battery capacity size WITH the current size of this board actually does not have a direct relationship, the capacity is not the battery is big, mainly to see the continuous current, that is to say, the greater your load, you choose the protection board to continue the current will be larger, with the battery capacity has no direct relationship.

5. How should the charger voltage be set?

Answer: Lithium battery must be charged with a special charger for lithium battery, do not use lead-acid battery charger, lead-acid charging may have high voltage breakdown of the MOS tube of the protection board, resulting in overcharging and no protection of the protection board. Charger voltage setting: use your battery string number *4.2V, which is the charging voltage of non-iron lithium battery, lithium iron battery charging voltage for battery string number *3.60V, which is the charging voltage of lithium iron battery, charging current standard is 0.2 times the capacity.

The meaning of equalization: A battery pack is made up of many cells connected in parallel and then in series. Each cell cannot be identical. So at the time of match group can only put the similar performance as a set, but at the time of charging due to the inconsistency will lead to recharge batteries performance after the completion of the voltage, the equilibrium is at the time of rechargeable batteries with high voltage discharge resistance, waiting for the low voltage batteries voltage high, in order to achieve the batteries voltage, improve the battery performance for the whole group.

Package List:

Battery protection panel *1

Announcement Bar with Infinite Scroll
ENDLESS PERKS, JUST KEEP SCROLLING
INDUSTRY-LEADING DURABILITY
-
SMART & INTUITIVE DESIGNS
-
SEAMLESS CONNECTIVITY
-
FUTURE-PROOF FEATURES
-
CUTTING-EDGE PERFORMANCE
-
LESS TANGLES
-
INDUSTRY-LEADING DURABILITY
-
SMART & INTUITIVE DESIGNS
-
SEAMLESS CONNECTIVITY
-
FUTURE-PROOF FEATURES
-
CUTTING-EDGE PERFORMANCE
-
LESS TANGLES
-
electra an electronic online store 3d image

Next-Gen Electronics Built for You

Smart. Durable. Future-Ready

Technology that adapts to your lifestyle, enhances your productivity, and stays ahead of the curve.

Love from our customers

Our customers' satisfaction is the ultimate testament to our commitment to quality and excellence. Check out some of the kind words and testimonials from our happy customers.

Tech Reviews Slider
★★★★★
"This wireless charger is amazing! Charges my phone quickly and works perfectly with my setup."
Davina K Verified Verified
★★★★★
"These noise-canceling headphones are fantastic! The sound is crystal clear, and the battery lasts forever."
Aliza Verified Verified
★★★★★
"The new SSD upgrade made my PC feel brand new! Lightning-fast boot times and instant app loading."
Liam T Verified Verified
★★★★★
"This mechanical keyboard is a must-have! Great tactile feel, vibrant RGB lighting, and perfect for gaming."
Jayna H Verified Verified
★★★★★
"This smartwatch is a game-changer! Tracks my workouts, monitors my heart rate, and syncs perfectly with my phone."
Ethan R Verified Verified
★★★★★
"This ultra-wide monitor has changed my workflow! The colors are stunning, and the 144Hz refresh rate is buttery smooth."
Sophia M Verified Verified
WE DON’T JUST COMPETE, WE OUTPERFORM
Not all electronics are created equal. See how our premium products stack up against the competition—better quality, better value, and a shopping experience you can trust.
Feature Electra Others
Exceptional Product Quality
24/7 Customer Support
Fast 5-10 Day Shipping
Proudly Designed in Australia
Money-Back Guarantee

SCROLL THROUGH THE LOVE ❤️

reviews Bar with Infinite Scroll
"Amazing battery life!"
"Fast shipping, great quality."
"Works perfectly, love it!"
"Best gadget I’ve bought!"
"Crystal clear display!"
"So easy to set up!"
"Super lightweight and sleek."
"Charges super fast!"
"Exceeded my expectations!"
"Great value for money."
"Perfect for gaming!"
"Incredible sound quality."
"Durable and well-built."
"Love the modern design!"br> new line
"A must-have for tech lovers!"
"Feels premium and solid."
"Highly recommend this!"
"Easy to use, very intuitive."
"Super fast and responsive."
"Fits my needs perfectly!"
"Best tech purchase ever!"
"Really happy with it!"
"Quality is top-notch!"
"Looks and feels amazing."
"Performance is outstanding!"
"Came well packaged!"
"Would buy again, no doubt!"
"A must-have for tech lovers!"

SEE THE HYPE – OUR TECH IN ACTION!

TikTok Video Viewer
❚❚
❚❚
❚❚
❚❚
❚❚
❚❚

Ready To Order But Have Questions?

Collapsible content

How can I track my order?

You will receive an email automatically with a tracking link once your order has been dispatched.

What payment methods do you accept?

We accept a variety of payment methods, including major credit cards (Visa, MasterCard, American Express), PayPal, and other secure online payment options. Rest assured, your payment information is handled with the utmost security.

What is your return policy?

We offer a hassle-free return policy within a specified timeframe after receiving your order. If you're not satisfied with your purchase, you can initiate a return by contacting our customer service team for assistance.

How do I contact customer support?

Our customer support team is available through various channels, including email, live chat, and phone. Visit our "Contact Us" page for detailed information on how to reach us, and our dedicated team will be happy to assist you with any queries or concerns.

Are my personal and payment details secure?

Yes, we take the security of your information seriously. Our website employs industry-standard encryption protocols to safeguard your personal and payment details. Your data is handled with the highest level of confidentiality, ensuring a secure and protected shopping experience.