5W Solar Development Kit, 3.7V Output,1.25-2P Interface. Directly compatible with all development boards such as Heltec V3, V4, Mesh Node T114, Wireless Tracker and more.
Solar Development Kit Equipped with WiFi LoRa 32 V4 development board and GNSS GPS Module.
Supports 1-4 18650 batteries. Perfect for installing outdoor LoRa nodes like Meshtastic and MeshCore.

Note:
This product is compatible with all Heltec development boards, but its default bracket only support the WiFi LoRa 32 V3, WiFi LoRa 32 V4, and Mesh Node T114.
This link with WiFi LoRa 32 V4 Dev-boards. Others Dev-boards need to be purchased separately.
This product does not include batteries. Batteries must be installed by the customer.
Specifications:
Solar : 5W
Solar Generation Voltage: 6V
Supported Battery Type: 18650 Lithium Battery
Supported Battery Quantity: 1-4 cells
Battery Connection Method: Parallel
Battery Charging Temperature: 0-45℃
Battery Discharging Temperature: -20-65℃
Type C Input:
Charging Voltage: 5V/1A
Overcharge Protection: 4.25V
Over-discharge Protection: 3.0V
Charging Time @12000mAh: 10-12 hours (from 3V to 4.25V)
Solar charging:
Charging indicator green: Charging
Charging indicator unlit: Fully charged
Charging time @12000mAh: 20-24 hours (at 50,000 lux light intensity)
Waterproof:IP67
Color: Black
Material: Monocrystalline Silicon + Plastic
Specification: 868MHz

Package Contents:
1 * Dev-board Solar Kit