DFRobot Solar Power Manager for 12V Lead-Acid Battery
Optimizes solar output with MPPT technology
Supports 12V lead-acid battery charging
Features dual high-power outputs (5V 5A, 12V 8A)
Integrates easily with its compact design
Ensures safety with comprehensive protections
The DFRobot Solar Power Manager for 12V Lead-Acid Battery is a medium-power, high-efficiency solar power management module designed for IoT and renewable energy projects. It facilitates the charging of a 12V lead-acid battery with a maximum current of 4A using a standard 18V solar panel. This module is suitable for applications up to 100W, including 12V lighting equipment, security monitoring, small robots, pumps, and environmental monitoring stations.
It features Maximum Power Point Tracking (MPPT) to optimize solar panel output under varying sunlight conditions, enhancing charging performance by 10%-30% compared to common PWM solar controllers. The compact and lightweight design allows for easy integration into various projects. The module offers dual high-power outputs of 5V 5A and 12V 8A, along with dual USB outputs of 5V 2.5A each. Except for one USB output, all outputs can be controlled via I/O pins of most controllers, aiding in dynamic power management and reduced power consumption. Comprehensive protection functions ensure the safety and stability of the solar systems.
1x Solar Power Manager for 12V Lead-Acid Battery
3x Black Jumper
4x Nylon pillar M3*16
4x Stainless steel screw M3*10
1x Aluminum cooling fin (Black) 14*7mm
1x Thermal conductive silicone pad (Blue) 14*0.5mm
1x Aluminum cooling fin (Black) 50*12.7mm
1x Thermal conductive silicone pad (Blue) 50*1.5mm
Charge Current: Maximum 4A with four stages (Trickle, Constant Current, Constant Voltage, Float)
Float Charge Voltage: 13.55V
Over-discharge Protection Voltage: 10.8V
Solar Charge Average Efficiency: 94% at 18V Solar Input
Outputs: OUT1 at 5V 5A, OUT2 at 12V 8A, USB1 at 5V 2.5A, USB2 at 5V 2.5A
USB1/USB2 support three USB charge protocols: Apple 2.4A, Samsung 2.0A, BC1.2
OUT1/USB1/USB2 Efficiency: 93% at 50% load
OUT2 Efficiency: 98% at 50% load
Quiescent Current: Less than 4 mA
Protection Functions: Backflow and Reverse Connection for Solar Input; Over-discharge, Over-charge, and Reverse Connection for Battery Input; Short Circuit, Over Current, and Over Heat for Outputs and USB ports
If you are not satisfied with a product purchased from the Site, you may request a return within 30 days from the delivery date, unless the product is listed under the Return Exceptions below or is subject to specific return conditions noted on the product page.
This return policy also applies, as a minimum standard, to products sold and fulfilled by third-party vendors through the Marketplace.
Returns under this policy concern non-defective products. In the case of a confirmed manufacturing defect, remedies are handled under the Warranty terms, at the Vendor's discretion. See the Warranty section.
Return Conditions
To qualify for a refund under the 30-day return policy, all of the following conditions must be met:
A valid Return Authorization (RA) number must be obtained prior to returning the product. Returns without an RA number will be refused.
The RA number is valid for 30 days. The returned item must be received within that period.
The RA number must be included with the return.
Products must be returned in unused, unmodified condition (e.g., no scratches, alterations, missing parts, or signs of installation/use) and in their original packaging, suitable for resale.
Shipping fees are non-refundable. Return shipping costs are the responsibility of the customer, except in cases of a product confirmed defective through RobotShop's troubleshooting process or of a verified shipping error by RobotShop.
Refunds are processed within 7 days after receipt and inspection of the returned item.
A $100 cleaning fee may apply to domestic robots returned in used or unclean condition.
A 20% restocking fee may apply to large-quantity returns of items ordered specifically for the customer from the manufacturer or not part of RobotShop's standard inventory.
Return Exceptions
The following products are not eligible for return or refund under this policy:
Used, damaged, or modified products — Items that show signs of use, wear, or alteration, making them unsuitable for resale.
Consumables — Use and wear-and-tear components, altered or depleted through use (e.g., batteries, belts, brushes, gears, filament, tires, disposable bags, lubricants, greases, waxes, etc.). Not eligible for return once opened or used.
Perishables — Goods liable to deteriorate or expire rapidly. Not eligible for return.
Sealed goods (health or hygiene) — Items sealed for health-protection or hygiene reasons (e.g., masks, gloves, odor-absorbing products). Not eligible for return once unsealed.
Build-it-yourself products and items requiring customer assembly — Including robots & kits, robot parts, and other products requiring assembly or soldering. Not eligible for return once assembled, soldered, or installed.
Digital Goods, Software, and Apps — Final sale only, due to licensing restrictions.
Clearance Items — Products identified as clearance or final sale, including end-of-life or discontinued items.
Custom-made, personalized, or special-order items — Products manufactured, configured, adapted, or built to the customer's own specifications and requirements.
On-Demand Items — Standard catalogue products not stocked by RobotShop and ordered specifically to fulfill a customer request.
While the same return policy applies, these orders require a separate contact process for returns.
RobotShop Fulfilled Orders → submit a support ticket from your account under My Support Tickets.
Marketplace Vendor Orders → submit a ticket from your account under My Marketplace Tickets to contact the vendor directly.
Note: Marketplace vendor products are normally labelled with SKUs starting with RM, and identified on the product page with the mention "Sold and fulfilled by [Vendor Name]".
