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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🔌 Power your passion, protect your projects!

PERFECT ESP 32 MATCH - Optimized for Arduino and NodeMCU WiFi kits, powering your IoT innovations seamlessly
RELIABLE POWER BOOST - 1000mAh capacity fuels your ESP32 projects with lasting energy
COMPACT LIGHTWEIGHT - Slim 4.5 x 2.5 x 1 cm design fits perfectly in your DIY setups without bulk
SAFE SMART CHARGING - Built-in overcharge and over-discharge protection keeps your battery healthy and your devices safe
INSTANT SHORT CIRCUIT DEFENSE - Protection board cuts power within milliseconds to prevent damage

The MakerFocus 3.7V 1000mAh lithium rechargeable battery pack includes a built-in protection board that safeguards against overcharge, over-discharge, and short circuits. Designed specifically for ESP32 and Arduino NodeMCU WiFi development boards, it delivers up to 3A discharge current in a compact, lightweight form factor, ensuring reliable and safe power for your IoT and DIY electronics projects.

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Brand	MakerFocus
Manufacturer	MakerFocus
Model	7PVE55471137TGQWO5E
Product Dimensions	4.5 x 2.5 x 1 cm; 17.96 g
Batteries	4 Lithium Ion batteries required. (included)
Item model number	7PVE55471137TGQWO5E
Hardware Platform	Arduino
Compatible Devices	Solar
Voltage	3.7 Volts
Batteries Included	Yes
Batteries Required	Yes
Battery Capacity	1000 Milliamp Hours
Battery cell composition	Lithium
Wireless Type	802.11abg
Manufacturer	MakerFocus
Item Weight	18 g

MakerFocus 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

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