Hi all: are the t1,t2 terminals for a temp sensor? if so, what kind of sensor and what is the operational range.

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.

Does it come with the pigtail?

Yes, this item contained the pigtail.

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HiLetgo 14.8V 4S 30A 18650 Li-ion Lithium Battery BMS PCB Integrated Circuits Protection Board Cell Balance

Product ID: 166027642

Details

Brand
HiLetgo
Color
green black
Input Voltage
4.2 volts
Item Weight
0.02 kg
Output Voltage
17

⚡30A high working current

🔋4S 14.8V Li-ion battery support

🛡️Multi-layer protection system

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Description

🛠️ Power up smartly — protect, balance, and perform like a pro!

SMART CELL BALANCING - Maintains battery health by balancing cells, extending overall battery lifespan and efficiency.
COMPACT DURABLE DESIGN - Slim 56x48x4mm PCB crafted with fine workmanship for long-lasting use in tight spaces.
PRECISION VOLTAGE CONTROL - High-accuracy voltage detection ensures optimal charging and discharging cycles.
COMPREHENSIVE SAFETY SUITE - Built-in overcharge, over-discharge, short circuit, and overcurrent protections keep your battery safe and reliable.
POWERFUL 30 A CURRENT HANDLING - Supports demanding battery loads with ease for uninterrupted performance.

The HiLetgo 14.8V 4S 30A Li-ion Battery BMS PCB is a compact, high-precision protection board designed for 18650 lithium-ion 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 battery management.

Specifications

ASIN	B07X28845M
Best Sellers Rank	#196,576 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #795 in Power Converters
Brand	HiLetgo
Color	green black
Customer Reviews	4.1 4.1 out of 5 stars (126)
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 Type	Micro USB
Power Source	battery
Unit Count	1 Count

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$15.54

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In stock

Sold byAmazon USADelivered 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 USA.

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