Trojan Motive T-105 225Ah 6VDC Deep Cycle Flooded Lead Acid Battery

Frequently Asked Questions

What applications is the Trojan T-105 designed for?
The Trojan T-105 is a versatile deep cycle battery designed to deliver reliable, long lasting power across a wide range of applications. It is commonly used in golf carts, solar energy storage systems, RVs, campers, and marine vessels where dependable deep cycle performance is essential. The T-105 is also a popular choice for powering floor cleaning machines, aerial work platforms, and other industrial equipment that require sustained energy output. In addition, many homeowners and off-grid enthusiasts rely on the T-105 for cabins and remote power systems due to its proven durability and exceptional cycle life.

Is the T-105 a deep cycle battery?
Yes, the Trojan T-105 is a true deep cycle flooded lead acid battery designed to withstand repeated charging and discharging cycles. Unlike a starting battery, which is built to deliver a short burst of high power to start an engine, a deep cycle battery is engineered to provide a steady amount of power over a longer period of time. Deep cycle batteries are designed to be regularly discharged to a significant portion of their capacity and then recharged without damaging the battery. This makes them ideal for applications such as solar energy storage, golf carts, RVs, marine systems, and off-grid power systems where sustained energy delivery is required. With its robust construction and proven deep cycle design, the Trojan T-105 delivers reliable performance and long service life in demanding renewable energy and motive power applications.

What is the expected lifespan of a Trojan T-105 battery?
The expected lifespan of a Trojan T-105 battery depends on several factors, including maintenance, charging practices, operating temperatures, and how deeply the battery is discharged during each cycle. As a flooded lead acid deep cycle battery, the T-105 requires regular watering and proper charging to achieve maximum service life. When properly maintained, many users can expect the battery to last approximately 4 to 6 years in golf cart applications, where frequent cycling and daily use are common. In solar energy storage systems, where charging and discharge patterns are often more controlled, the T-105 can provide reliable performance for 5 to 10 years or more. Following recommended maintenance procedures and avoiding excessive overcharging or deep discharging can help extend the battery's lifespan and overall performance.

Can it be mounted on its side?
The T-105 should always be installed and used in an upright position. Because it is a flooded lead acid battery, it contains liquid electrolyte that can leak if the battery is tilted or mounted on its side. Keeping it upright is important to ensure safe operation, prevent damage, and maintain proper battery performance over time.

Does it require a vented battery enclosure?
Yes, a vented battery enclosure or a well ventilated installation area is required. Flooded lead acid batteries release small amounts of gas during the charging process, so proper ventilation helps safely disperse these gases and reduces the risk of buildup. Good airflow is important for safe operation and also helps maintain battery performance and longevity.

Charging & Maintenance

How do I charge a Trojan T-105 battery?
To properly charge a Trojan T-105 battery, it is important to use a high quality charger specifically designed for flooded lead acid batteries and to follow Trojan's recommended charging profile. Using the correct charger helps ensure the battery receives the proper voltage and charging stages, including bulk, absorption, and float charging. Proper charging not only maximizes battery performance but also helps prevent common issues such as undercharging, overcharging, sulfation, and premature battery failure. For best results, recharge the battery as soon as possible after use, avoid leaving it in a discharged state for extended periods, and periodically inspect electrolyte levels to ensure optimal operation and long service life.

How often should I add water?
To help maximize the performance and lifespan of your Trojan T-105 battery, you should check the water levels at least once per month. Because the T-105 is a flooded lead acid battery, water is naturally lost during the charging process and must be replenished periodically. Batteries that are used frequently, subjected to high charging rates, or operated in hot environments may require more frequent inspections and watering. When checking water levels, always inspect the battery after it has been fully charged and add only distilled water as needed to maintain the proper electrolyte level. Regular maintenance helps prevent damage to the battery plates, ensures optimal performance, and can significantly extend the overall life of the battery.

What type of water should I use?
Only distilled water should be used in the battery. Tap water contains minerals and impurities that can build up inside the battery over time, which can reduce performance and shorten its lifespan.

Can I use a standard automotive charger?
Some standard automotive chargers may be able to charge the battery, but it is best to use a smart charger that is specifically designed for deep cycle flooded batteries. These chargers are built to provide the correct charging profile, which helps maintain performance and extends the overall life of the battery.

What happens if I overcharge the battery?
Overcharging the battery can lead to a number of issues, including excessive water loss, overheating, and corrosion of the internal plates. Over time, this can significantly reduce the overall performance of the battery and shorten its lifespan.

Comparison

What is the difference between the T-105 and T-105PLUS?
The T-105 and T-105PLUS are both deep cycle flooded batteries from Trojan Battery Company, but the PLUS version is an upgraded design. The T-105PLUS uses improved internal materials and design enhancements aimed at boosting overall performance, durability, and service life. It is built to better handle repeated deep discharges and demanding use while helping reduce maintenance needs over time. The standard T-105 is still a very reliable and widely used option, but the T-105PLUS is generally the better choice if you want longer life and more consistent performance in the same size and voltage class.

How does the T-105 compare to AGM batteries?
The T-105 and AGM batteries each have their own strengths depending on how they are used and maintained. The T-105 offers lower upfront cost, strong deep cycle performance, and can provide a longer service life when it is properly maintained, including regular watering and charging practices. It is a proven option for applications where routine maintenance is manageable and cost efficiency is important. On the other hand, AGM batteries are maintenance free, so they do not require watering and are easier to care for over time. They also reduce the risk of spills, making them a cleaner and more convenient option, especially in enclosed or sensitive environments.

How does the T-105 compare to lithium batteries?
The T-105 and lithium batteries differ mainly in cost, performance, and long term value. The T-105 offers a lower upfront cost, proven reliability, and is widely compatible with many existing systems, which makes replacement and setup simple. It is a dependable choice for users who want a traditional deep cycle flooded battery that has been used for years. Lithium batteries, on the other hand, come with a higher initial cost, but offer several performance advantages. They are significantly lighter in weight, charge much faster, and provide a higher usable capacity since they can safely discharge deeper without damage. They also last much longer in terms of cycle life, which can offset the higher purchase price over time.