What is the difference between a buck and a boost regulator?

A buck regulator steps down a higher input voltage to a lower regulated output voltage. A boost regulator steps up a lower input voltage to a higher output voltage.

Does this BMS board include overcharge protection?

Yes, it protects the connected battery cells against overcharge, over-discharge, over-current, and short-circuits during operation.

How do I choose the correct current rating?

Ensure the maximum draw of your motors and logic boards is lower than the continuous current capacity of this regulatory module.

SIMPLE ROBOT

Multi-Cell 2S 3S 4S Type-C To 8.4V 12.6V 16.8V Step-Up Boost LiPo Polymer Li-Ion Charger 7.4V 11.1V 14.8V 18650 Lithium Battery

Product Introduction: \1: various choices, customers choose what they need according to different needs \2: widely used \3: High Security Performance \4: easy to understand and easy to operate \5: battery overvoltage protection\\\Product parameters:\\2-Cell(2S) 8.4v:\\Input voltage: DC 3-6V (recommended DC 3.7V 5V) \Input current: 1A (version 1A);2A (version 2A);4A (version 4A) \Charging voltage: 8.4V \Charging current: 0.55A (version 1A);1.1A (version 2A);2.2A (version 4A)\\\\3-Cell(3S) 12.6V v

High-efficiency voltage regulation with low thermal dissipation
Onboard safety features including short-circuit and over-temperature cuts
Active cell balancing circuitry for extended battery pack health
Compact footprint allowing easy embedding in tight enclosure builds
Low output ripple voltage protecting sensitive analog sensor lines
Durable solid-state capacitors and premium surface-mount components
Clear terminal markings for fast and safe wire splicing setup

$2.88 $3.74 Save 23%

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Best For: Electronics builders and roboticists looking to secure stable power delivery, protect delicate ICs, and manage rechargeable battery cells.

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(855) I-BUY-ROBO (855) 428-9762

Take your robotics projects to the next level with the Multi-Cell 2S 3S 4S Type-C To 8.4V 12.6V 16.8V Step-Up Boost LiPo Polymer Li-Ion Charger 7.4V 11.1V 14.8V 18650 Lithium Battery. This premium Battery Management Systems component has been carefully selected and tested to meet the demanding standards of robotics engineers, students, and maker community creators. Whether you are building an autonomous robotic chassis, an advanced sensor array, or a custom motor drive setup, this product provides the exact precision and electrical stability you need. Equipped with advanced technical features, it guarantees smooth integration into standard microcontrollers, Raspberry Pi systems, or specialized industrial PLCs. Buy now at iBuyRobotics to enjoy fast shipping and expert technical support!