HIGH CAPACITY RECHARGEABLE BATTERY: 3.7V 4000mAh lithium-ion battery pack provides extended usage for your electronics and DIY projects. COMPATIBLE WITH MULTIPLE DEVICES: Ideal replacement or upgrade for DIY electronics, toys, lighting equipment, and small devices requiring JST XH2.54/2P connector. BATTERY SPECIFICATIONS: Voltage: 3.7V; Capacity: 4000mAh; Dimensions: 4.57" x 0.84" x 0.74"; Weight: 3.16 oz; Connector: JST XH2.54/2P. BUILT-IN SAFETY PROTECTION: Features protection from overcharge, over-discharge, overcurrent, and short circuits for safe operation and longer battery life. What You Get: 2 x Battery Pack [Rechargeable] and 24-Month Worry-Free Warranty and Smile Customer Service.

Elxjar rechargeable lithium-ion battery pack provides a reliable, high-capacity power solution for your DIY electronics, toys, lighting, and equipment projects. Each 3.7V 4000mAh battery comes with a JST XH2.54/2P connector for easy installation and compatibility with various devices.

Product Features:

• Battery Type: Lithium-Ion (Li-ion), Rechargeable
• Voltage: 3.7 Volts
• Capacity: 4000mAh
• Connector: JST XH2.54/2P (customizable)
• Dimensions: 4.57" (116.20mm) L x 0.84" (21.30mm) W x 0.74" (18.70mm) H
• Weight: 3.16 oz (89.7g)
• Built-in protection circuit prevents overcharge, over-discharge, overcurrent, and short-circuit

Installation Instructions:

• Ensure correct polarity before connecting to avoid damage.
• Compatible with devices using JST XH2.54/2P plug.
• Fully charge battery before first use for optimal performance.

FAQ:

Q1: Is the connector customizable?

A1: Yes, please specify connector type before ordering if customization is needed.

Q2: Can I use this battery for RC toys or drones?

A2: It depends on the required voltage, current, and plug type. Please confirm device specifications.

Q3: Is protection circuitry included?

A3: Yes, the battery includes built-in overcharge, over-discharge, overcurrent, and short-circuit protection.