8 Best Solar Charger For Trolling Motor Battery 2025 in the United States

The WEIZE 12V 100Ah LiFePO4 Battery is an excellent choice for those needing a reliable power source for a trolling motor battery, especially when paired with solar systems. With a remarkable lifespan of more than 2000 cycles at full discharge and up to 8000 cycles at a 50% discharge, this battery significantly outlasts traditional lead-acid batteries, making it a cost-effective investment in the long run. Its lightweight nature, being at least half the weight of lead-acid alternatives, adds to its portability, which is particularly beneficial for outdoor setups where mobility is key.

Durability is another strong point, as the battery is built to endure cold conditions and prevent thermal runaway, ensuring safety during operation. This makes it suitable for various applications beyond trolling motors, such as RVs and camping.

It’s important to note that this battery is designed for energy storage and should not be used as a starter battery for vehicles, which could limit its versatility for some users. Additionally, it requires a dedicated lithium battery charger, which might be an extra investment if you don't already own compatible equipment. The warranty of 10 years is a comforting aspect, providing assurance of quality and customer support when needed. For those looking specifically for a robust, long-lasting solar charger for their trolling motor battery, the WEIZE battery is certainly worth considering.

The OGRPHY 36V Lithium Battery is designed primarily for golf carts but offers versatility for various applications like trolling motors and solar systems. One of its standout features is the use of grade A lithium iron phosphate cells, which provide a long lifespan of around 10 years with over 5000 deep cycles. This makes it a reliable choice for those wanting to maximize their investment in a battery. The built-in upgraded 200A BMS ensures that the battery can handle high discharge rates, reaching up to 1000A for short bursts, which is beneficial for powering demanding motors.

With a capacity of 3.84kWh, the battery can reportedly support a golf cart with a 3kW motor for about 30 miles, making it suitable for extended uses without frequent recharges. It also features both Bluetooth and LCD monitoring, allowing users to keep track of battery parameters easily, enhancing convenience and safety.

However, there are a few considerations to keep in mind. The battery weighs around 63.5 pounds, which might be cumbersome for some users, especially when relocating or installing it in tight spaces. While the 200A BMS provides significant protection, the safety of lithium batteries can still lead to concerns about overheating or potential hazards if not handled correctly. The included 38.4V 25A charger is a nice touch, particularly with its ability to wake up batteries from low voltage conditions, but it’s essential to ensure compatibility with your specific solar setup.

The LiTime 24V 100Ah LiFePO4 Lithium Battery, paired with a 29.2V 20A charger, is a robust choice for powering trolling motors, especially for those relying on solar energy. Its high energy density and up to 15,000 cycles make it a long-lasting option, promising up to 10 years of service compared to traditional lead-acid batteries. The built-in 100A Battery Management System (BMS) provides protection against overcharging, over-discharging, and short circuits, ensuring safe operation in various temperatures.

It supports up to 2560W load power, making it versatile for multiple uses, including RVs, campers, and off-grid setups. The dedicated charger can fully charge the battery in about 5 hours and helps maintain the battery's health by waking it up from deep discharges. However, this battery and charger setup is quite heavy at 45.9 pounds, which might impact portability. Additionally, it comes in two packages due to its weight, requiring some patience during delivery.

Though excellent for energy storage, it's not suitable for starting devices like golf carts or other high-drain applications. With a strong focus on safety, durability, and efficiency, this battery is ideal for those needing reliable power for trolling motors and other similar applications.