The best type of solar panels battery is a deep cycle battery like lead-acid and lithium-ion batteries, which are commonly used in solar panel systems. Lead-acid batteries are cost-effective and have a long track record in the industry. However, lithium-ion batteries, especially the LiFePO4 batteries used in Anker portable power stations or solar generators offer higher energy density, longer lifespan, and are maintenance-free. It's recommended to assess your specific needs and consult with solar energy professionals to determine the best battery solution for your solar panel system.

The size of the solar battery needed to power a house depends on various factors, including the electricity consumption of the house, daily energy usage patterns, and desired backup capacity. Generally, the average American home uses an average of 3-10kWh power daily on average, which implies you’ll need batteries of similar total capacity for a day’s power supply.

For this requirement, you can also choose solar generators like the Anker Solar Generator 767 including a 2048Wh powerhouse and two 200w solar panels which can sufficiently and efficiently power nearly all devices and appliances used in your house. In addition, you can also consult with a solar energy professional who can assess your specific energy needs and design a battery solar panel system that matches your requirements.

Yes, it's possible to connect solar panels directly to a solar panel battery pack if your solar panels offer compatible ports. However, it is important to note that the direct connection may not be the most efficient or optimal setup. In most solar panels with battery installations, a charge controller or inverter is used between the solar panels and batteries to regulate the flow of electricity, preventing overcharging and optimizing the charging process.

The lifespan of pane solar batteries can vary depending on several factors, including the type of battery, usage patterns, maintenance, and environmental conditions. Generally, lead-acid batteries used in solar installations can last anywhere from 3 to 10 years, depending on their quality and usage. Lithium-ion batteries, on the other hand, have a longer lifespan and can last between 10 to 15 years or even more. For example, Anker's portable power stations, with their proprietary InfiniPower™ technology and LiFePO4 batteries, are designed to last over a decade, even with daily use.

When solar batteries are full, they reach their maximum capacity and cannot store any more energy generated by the solar panels. In this state, the excess solar energy can be directed back into the grid or diverted to other uses like charging electric vehicles or powering additional appliances. However, it's important to choose advanced solar systems like the Anker Solar Generator 757 with the capability to monitor the battery’s health or automatically adjust the solar panel output to prevent overcharging the solar batteries.