20W 12V Solar Battery Maintainer & Trickle Charger

SKU: CS20W-G1V1-US

$29.99 USD

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説明

Efficient Battery Charging | 20W 12V solar charger with A+ monocrystalline cells and smart controller delivers 20–30% faster charging.
Wide 12V Compatibility | Works with LiFePO₄, Li-ion, AGM, SLA, GEL, FLD, EFB, MF batteries for cars, RVs, boats, motorcycles, campers, and more.
3-Stage Smart Charging | Auto Bulk → Absorption → Maintenance with 3 LEDs and 6-in-1 protection (reverse current, over-charge, over-voltage, over-current, short-circuit, over-temperature).
All-Weather Durability | IP68, low-iron tempered glass, corrosion-resistant frame; stable output -10°C to 70°C; corner guards for drop protection.
Complete Kit & 24/7 Support | Includes solar panel ×1; charge controller ×1; 360° adjustable mount ×1; alligator clip cable ×1; O-rings ×1; mounting hardware kit ×1; 24/7 support & 365-day warranty.

Pack Option

1 Pack 2 Pack

Description Specs Includes Downloads FAQ Reviews

20W 12V Solar Battery Maintainer & Trickle Charger

Boost your 12V batteries with Callsun 20W high-efficiency solar charger. Featuring A+ monocrystalline cells, IP68 all-weather durability, smart 3-stage charging, and wide battery compatibility, it keeps your cars, RVs, boats, and motorcycles powered and ready, anytime, anywhere.

Comprehensive Smart Safety Protection
Reverse Charge Protection · Short circuit Protection · Over-temperature Protection · Over charge Protection · Over-current Protection · Over-voltage Protection

Why Choose Callsun Solar Panel

Feature	Callsun Solar Panel	Other Solar Panels
Efficiency	High efficiency(30%)	Low efficiency(20%)
Installation	360° Flexible Installation	180° Flexible Installation
Waterproof	IP68	IP65
Frame	Anodized Aluminum Alloy	General Aluminum Alloy
Glass	1.6mm Tempered Glass	0.6mm Tempered Glass

Works Perfectly In Any Weather
2400Pa Max Wind Load · 5400Pa Max Snow Load · IP68 Waterproof

Ideal for car, RV, boat, motorcycle, camper, lawn mower, trailer, tractor, e-bike, pickup, snow mobile, and jet ski.

Specifications

Key Specs at a Glance 20W output · 30% efficiency · Adjustable Angle(360°) · IP68

Specifications

Cell Type	Monocrystalline Silicon
Glass	1.6mm Tempered Glass
Frame	Anodized Aluminum Alloy
Solar Panel Max Power (at STC)	20W
Maximum Power Voltage (Vmp)	20.23V
Maximum Power Current (Imp)	0.99A
Open-circuit Voltage (Voc)y	24.37V
Short-circuit Current (Isc)	1.04A
Compatible with	12V LiFePO4, Lithium Ion, AGM, SLA, GEL, FLD, EFB, MF batteries
Charging Principle	When the battery voltage is below 13 volts, boosting charging occurs. Charging stops if the instantaneous voltage exceeds 14.7 volts. When the average battery voltage falls within the range of 13.5 to 14.2 volts, trickle charging is activated. An intelligent chip employs an algorithm to maintain the battery voltage within the range of 13.7 to 14.1 volts using a small current. The specific voltage values may vary for different batteries.
Operating Temperature Range	14°F ~ 158°F (-10°C ~ 70°C)
Solar Panel Max. Wind Load (Pa)	2400
Solar Panel Max. Snow Load (Pa)	5400
IP Rating	IP68
Trickle Maintainer Dimensions	303 × 408 × 20 ± 2 mm (11.93×16.06×0.79 ± 0.08 in)

*STC(Standard Test Condition): Irradiance 1000W/m², Cell Temperature 25°C, Air Mass 1.5.

Includes

1 Pack: 20W 12V Solar Battery Maintainer & Trickle Charger×1

20W 12V Solar Battery Maintainer Trickle Charger 2 Pack

2 Pack: 20W 12V Solar Battery Maintainer & Trickle Charger ×1

Downloads & View

📄

20W 12V Solar Battery Maintainer & Trickle Charger User Manual

View Download

FAQ

1. What types of batteries are compatible with this 12V solar charger?

This smart 12V solar charger works with LiFePO4, Li-ion, AGM, SLA, GEL, FLD, EFB, and MF batteries. It's suitable for cars, RVs, boats, motorcycles, campers, lawn mowers, trailers, water pumps, and electric fences.