What are the dimensions of the pack?

Dimensions(±2mm): 112 * 65 *8.8mm / 4.41 * 2.56 * 0.35inch(L*W*H)

is this compatible with rp2040 devices like the pico?

Not 100% sure. I think you can use the battery and run the Pico on a breadboard, if that is what you were thinking. The RP runs off of 3.3Volts, so it is close enough. If you want to be safe you can use a TP4056. They are cheap enough.

Can this battery be safely charged with a TP4056?

Hi, yes, it could be charged by TP4056.

Can I charge it with your charging board?

Hi friend, you can use it can be matched with ESP32 Development Board WIFI Kits for Arduino Nodemcu, you could see the picture 4 on the listing.

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MakerFocus 4pcs 3.7V Lithium Rechargable Battery, 802540 3.7V 1000mAh Battery with Protection Board Insulated Rubber Tape Matched with ESP32 Development Board WiFi Kit for Arduino Nodemcu

MakerFocus 4pcs 3.7V Lithium Rechargable Battery, 802540 3.7V 1000mAh Battery with Protection Board Insulated Rubber Tape Matched with ESP32 Development Board WiFi Kit for Arduino Nodemcu

Product ID: 730728280

Details

Battery Capacity
1000 Milliamp
Battery Cell Composition
Lithium
Battery Weight
17.76 Grams
Brand
MakerFocus
Item Weight
17.96 Grams
Item dimensions L x W x H
45 x 25 x 10

⚡1.5A continuous discharge

🔋1000mAh capacity

🛡️Multi-layer protection board

Description

🔌 Power your innovation with confidence — never let your projects run dry!

LIGHTWEIGHT COMPACT - At just 17.9g and 44x26x9mm, these batteries fit snugly into your DIY projects without bulk.
RELIABLE 1000 M AH POWER - Keep your ESP32 projects running longer with a robust 3.7V lithium battery designed for steady performance.
FAST FLEXIBLE CHARGING - Supports standard (8h) and fast charging (2.5h) with controlled current to maximize battery health.
SMART PROTECTION CIRCUITRY - Built-in overcharge, over-discharge, short circuit, and overcurrent safeguards ensure safety and longevity.
OPTIMIZED FOR ESP 32 ARDUINO - Perfectly matched JST 1.25mm connectors for seamless integration with popular development boards.

The MakerFocus 4-pack 3.7V 1000mAh lithium rechargeable batteries come with integrated multi-layer protection boards and insulated rubber tape, designed specifically for ESP32 and Arduino NodeMCU WiFi kits. Featuring a compact form factor, 1.5A continuous discharge current, and smart safety features like overcharge and short circuit protection, these batteries deliver reliable, safe, and efficient power for your IoT and embedded projects.

Specifications

Amperage	1.5 Amps
Asin	B07CXNQ3ZR
Battery Capacity	1000 Milliamp Hours
Battery Cell Type	Lithium
Battery Weight	17.76 Grams
Best Sellers Rank	#330,017 in Home Improvement (See Top 100 in Home Improvement) #1,726 in International Power Adapters
Brand Name	MakerFocus
Customer Reviews	3.0 3.0 out of 5 stars (1) 3.0 out of 5 stars
Item Dimensions	45 x 25 x 10 Millimeters
Item Weight Unit Of Measure	17.96 Grams
Manufacturer	MakerFocus
Model Number	7PVE55471137TGQWO5E
Number Of Batteries	4 Lithium Ion batteries required. (included)
Reusability	Rechargeable
Unit Count	4.0 Count
Upc	192684018591
Voltage	3.7 Volts

Reviews

User

It works like a lipo battery. Amazing.

21.01.2023

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