Manufacturing and trading are one of the most stable ways to obtain energy batteries. In the game, many pieces of equipment, items, and resources can be obtained through gathering and crafting, and then sold to NPC merchants or other players in exchange for energy batteries. It is recommended in the early stage to prioritize collecting iron ore and processing it into basic equipment such as iron pickaxes and iron swords, which have a high demand and can be sold quickly. As the variety of resources increases, players can unlock more advanced alloys like bronze, silver, and gold, and sell tools or weapons made from them for higher profits. Additionally, some consumables also have a high demand in the market, such as food, medicine, and rare materials. If you can find a stable source of ingredients, such as meat, vegetables, and spices, you can make high-level dishes and sell them to other players or merchants for a good profit.

Dungeons and secure warehouses are important challenge locations in the game, providing both loot and effective ways to obtain energy batteries. Secure warehouses are similar to enclosed areas filled with enemies, where players need to clear monsters, explore rooms, and open various loot boxes. The difficulty of different levels of secure warehouses varies, but so do the rewards. Typically, after completing a secure warehouse exploration, players can obtain a large amount of equipment, items, and tradable resources. These items can be directly sold to NPCs or traded with other players in the market to quickly accumulate energy batteries. When challenging dungeons, rare items dropped by some bosses, such as weapon blueprints and special materials, often fetch a high price. Therefore, teaming up to challenge high-difficulty dungeons is also a good way to earn money, as it allows you to gain equipment to improve your own strength and sell excess loot for energy batteries.
In "Seven Days World," some rare resources have very high market value. For example, metal ores, special woods, and medicinal herbs are all important materials for making high-level equipment, items, and potions, with a high demand. If you enjoy exploring, it is recommended to look for resource points on the map and prioritize collecting high-value materials, storing them in a safe place. Some high-grade ores can be refined into ingots for sale, while medicinal herbs can be processed into potions, which are more valuable. Additionally, some special materials dropped by wild monsters can also fetch a good price in the market. For instance, the fur, bones, or special synthesis items from certain rare monsters are highly sought after by players. If you can find a stable monster respawn point, you can farm these high-value resources over the long term, accumulating a large number of energy batteries.

The game's trading market allows players to freely buy and sell items, so savvy players can earn energy batteries by buying low and selling high. For example, when the price of a certain resource is low, you can stockpile it and sell it at a higher price when market demand rises, to earn the difference. This method applies to various items, including equipment, materials, and medicines, but requires some market judgment to avoid overstocking and causing prices to fall. Additionally, calibration blueprints for some high-level weapons are very expensive in the market. If you obtain these blueprints in dungeons or battles, consider watching the market price and selling them when demand is high to maximize profit.
Regular in-game events and the task system are also ways to obtain energy batteries. Many tasks reward a certain amount of energy batteries, especially daily and weekly tasks, which provide stable income upon completion. Additionally, the game may hold limited-time events, such as defeating special monsters, completing challenge tasks, or participating in PvP competitions, which usually offer extra energy battery rewards and may even drop some rare items that can be sold for a high price in the market. It is recommended that players log in daily to check the latest tasks and events, and try to complete these additional challenges to earn extra energy battery income.

In "Seven Days World," there are various ways to obtain energy batteries, and players can choose the most suitable method based on their gaming style. Whether through manufacturing and trading, challenging dungeons, collecting rare resources, market arbitrage, or participating in activities, you can steadily accumulate wealth. By reasonably utilizing these methods, not only can you grow your character faster, but you can also gain more advantages in the game and build your own powerful force.