How do I connect these for 24 volts using 14 18650 batteries? 7 in series, 2 groups in parallel.

I recommend to use 3S 11.1V 12.6V 25A W/Balance 18650 Li ion Lithium Battery PCB Protection Board Know as a BMS. search for DIY 18650 battery pack

What is the max input voltage? Would 5v be ok

5v input should be fine. The battery will be allowed to charge till a battery measure of 4.25 is reached, then the circuit will disconnect your 5v input from the battery.

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KOOBOOK 10pcs 3A BMS Protection Board for 1S 3.7V 18650 Li-ion Battery

Product ID: 166027929

Details

Brand
KOOBOOK
Color
Green
Input Voltage
3.7 volts
Item Weight
0.01 kg
Output Voltage
3.7 volts

⚡3A max current

🔋1S 3.7V Li-ion support

🛡️Multi-layer battery protection

€ 14.32

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Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛡️ Power up safely, stay ahead effortlessly!

COMPACT VERSATILE DESIGN - Slim 30x3.7x2.2mm size fits various 18650 battery shapes with easy wiring.
COMPREHENSIVE BATTERY SAFETY - Built-in overcharge, over-discharge, short circuit, and overcurrent protection ensures absolute battery safety.
ENERGY EFFICIENT PERFORMANCE - Low current consumption guarantees longer battery life and stable operation.
RELIABLE 3 A CURRENT HANDLING - Supports up to 3A continuous current for stable power delivery.
BULK PACK FOR PRO LEVEL PROJECTS - Includes 10pcs boards, perfect for scaling your battery management needs with cost efficiency.

The KOOBOOK 10pcs 3A BMS Protection Board is a compact, high-performance battery management system designed for 1S 3.7V 18650 Li-ion batteries. It features multi-layer safety protections including overcharge, over-discharge, short circuit, and overcurrent safeguards, ensuring reliable and stable battery operation. With a slim form factor and low power consumption, this pack of 10 boards is ideal for professionals seeking efficient, scalable battery solutions.

Specifications

ASIN	B07W75BQWW
Best Sellers Rank	#82,670 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #59 in Lab Power Supplies #122 in Life Science Supplies
Brand	KOOBOOK
Color	Green
Customer Reviews	4.4 4.4 out of 5 stars (151)
Input Voltage	3.7 volts
Item Weight	0.01 kg
Manufacturer	KOOBOOK
Mfr Part Number	KB457
Model Number	KB457
Number of Items	10
Number of Outlets	10
Output Voltage	3.7 volts
Plug Type	Type A
Power Source	rechargeable battery
UPC	797805999058
Unit Count	10 Count

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€ 14.32

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Greece.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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1 month ago

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