Matters 12V100AH ??Kstar battery manufacturers Kstar battery maintenance-free batteries can be charged should be noted: The power of the charging voltage at all the time to maintain a constant value, with the gradual increase in the battery terminal voltage, the current decreases. Compared to the constant current charging method, the charging process is more close to the optimal charging curve. Fast charging with a constant voltage, as shown in Fig. Due to the low initial charge battery electromotive force, the charging current is large, as the charge of conduct, the current will gradually decrease, therefore, just a simple control system. This method of charging water electrolysis little to prevent the battery overcharge. But in the initial charge current is too large, resulting in a significant impact on battery life, and easy to make the battery plates bend, causing the battery scrap. In view of the above drawback, constant voltage charging is rarely used, only the power supply voltage and the charging current is large use. For example, automobile is running, the battery is charging to constant voltage charging method. Maintenance-free batteries, greatly facilitate the user's daily use, to avoid the daily care and maintenance. In fact, the basic structure of the maintenance-free battery and common battery is the same, the difference is that in order to achieve long-term maintenance-free batteries do not add distilled water or electrolyte purpose, exhaust system and general battery is significantly different. Ordinary battery can be screwed down on top of the six closures, there are vent above closures are used to raise, check the electrolyte and gas emissions. For both gas emissions and reducing the electrolyte overflow vent plugs from the inside to the outside is generally not straight, but staggered up and down or roundabout. Xinyuan Hongyu Pre-sale services: active propaganda work products, mainly based on customer usage and needs, providing the best products have superior price performance. According to customer needs, providing a variety of designs, including battery configuration problems and situations according to the customer's site to provide the design of the battery holder. Our principle is that as long as you put forward to solve the problem at hand, the rest of the work we do. Sale of services: all batteries sold, we will reach the designated destination according to customer requirements, in order to maximize the client's approval. Service: 1. For power supply and battery sold ups we establish a "customer files" tracking service. 2. After the sale, the implementation at any time call tracking, and perform a thorough inspection at least once a year (100ah above series) according to customer requirements, and to customer reports of battery usage, so that customers with the assured. 3. Occurred when customer complaints and providing solutions within an hour. Including on-site recovery program and returns processing program, until the customer satisfaction. The aim is to minimize the customer's trouble. 4. Under normal circumstances, the battery issue a refund within two weeks of arrival inspection report, indeed our reason our responsibility; not my department batteries reason, we issue the corresponding report, to guide the customer to use. One: How to Order ① telephone contact, send your request detailed description below! ② store messages and QQ, contact us; two: Please contact our customer service in strict accordance with each customer's specifications, design, quantity and quality requirements to produce before ordering; please our customers prior to purchase can contact online customer service, negotiated to Sample processing matters. Three: the price of the Division on all exhibition as commodity prices are the reference price, the actual price of the goods need to negotiate with the Division I! Our compliance with the principles of large favorably, and give preferential! Four: About the next single specific harvesting can be negotiated. Five: About Delivery We will be the first time for your shipment after your payment, according to the buyer's payment arrangements to issue the order. We all have someone packaged delivery strict quality inspection of goods, please rest assured that order.