Brand Dorset Model BT-12M24AT chemical type lead-acid battery voltage 12 (V) type stationary battery maintenance-free battery state of charge the battery cover and exhaust tied structure Valve Regulated Sealed Battery rated capacity 24AH Dimensions 177 * 166 * 126 (mm) Product Certification CCC Scope ups battery service description of the product support seven days no reason to return UPS Batteries - UPS battery discharge when the battery discharge temperature control at -15 ℃ - + 50 ℃ in the range. Please continuous discharge current control 3CA following (H control 6CA below). Discharge voltage varies depending on the current size, roughly as follows. Note discharge, the voltage must not fall below the following voltage. Please charge quickly after discharge. Please also charged immediately after such careless over-discharge. Dorset battery and environmental conditions 1. Charging current (float use): 0.15CA below 2. Discharge current range: 0.05CA ~ 3CA 3. Ambient temperature: 0 ℃ ~ 40 ℃ (suitable temperature is 25 ℃) 4. charging voltage: (12V battery recommended) ambient temperature charging voltage (float used) discharge voltage (float use) 25 ℃ 13.60 to 13.80V 10.5V Notes: 1. When using a float, the charging current exceeds the time 0.15CA Please consult in advance with the company. 2.0.15CA = 0.15 × battery capacity, 0.05CA and 3CA so on. Dorset storage battery charging conditions Storage temperature range is -15 ℃ ~ 40 ℃, the battery should be regularly supplementary charge: no charge during the relationship and be able to keep the temperature as follows: The following 20 ℃: 9 months 20 ~ 30 ℃ the following: 6 months following 30 ~ 40 ℃: 3 months Dorset battery Installation Notes (1) vertically upright by placing the principle of prohibiting the use of the battery upside down. (2) Do not give unusual vibration and impact on the battery. (3) During the installation should pay attention to insulation. (4) Do not install the machine into a sealed-type structure. (5) During the installation should pay attention to make to maintain a certain distance between the battery, in order to ensure air circulation. (6) Please do not mix different types of batteries. (7) Do not let the battery contact with organic solvents. Dorset Battery Handling Precautions (1) Make sure the conditions are met manufacturer's specifications. (2) initial use or long-term use must be charged after placement. (3) UPS batteries are used for float use, if frequently used batteries (similar recycling), it will seriously affect the life of the battery trickle. (4) Check batteries regularly. (5) If a discovery electric tank deformation and leakage phenomenon, do not use, should be replaced. (6) If the connection is not tight at the terminals, posing a fire hazard. (7) suggested that the absence of a power outage in 3 to 6 months to do a discharge, such as found in the battery charging voltage or discharge characteristics when there is abnormal, replace the batteries. (8) when the battery capacity is less than 50% of the initial capacity of the battery should be replaced. (9) The battery state of charge of the battery replacement should pay attention to the battery state of charge is consistent with the use of a group where the company sold products to be quality, the right of the following circumstances shall not provide guarantees 1. The service station closed When the battery appearance has been seriously damaged beyond its capacity battery detection; 2. Due to lack of capacity due to over-discharge battery capacity after repeated charge-discharge of the battery can be restored; 3. Since the drive motor, controller, charger failure or abnormal cell damage caused; 4. Customers battery production has been modified by the completion date. Battery backup power operation in question and causes a lead-acid batteries with a wide range of applications, especially in standby power applications, due to the operation of VRLA batteries more stringent requirements, in deviation from the battery to run under the correct conditions of use will be affect battery life, and even cause serious consequences, therefore, lead-acid battery monitoring is very important. Battery backup sites are generally very important sector, the capacity drops to a certain extent, the battery pack will not achieve the role of power backup, once the main power fails, it could result in system downtime, resulting in huge losses, to detect the battery capacity decline and handling battery failure, for VRLAB user is very important. We studied the battery is used as a backup power source, usually a state of charge, and charging device associated output, once the electricity is interrupted, the battery begins to discharge immediately. Compared with the deep cycle battery discharge, due to long-term back-up battery in floating state, even if accidental discharge, because the smaller the depth of discharge (with mains interruption time related), it is difficult to obtain accurate retention capacity of the battery. And in the process of cell operation (online measurement) to detect the degree of deterioration of the battery (SOH-State of health) is an issue of concern to most users, but also one of the biggest challenges the use of back-up battery. At present, the battery backup power to run risks exist: 1) Battery life is currently unable to meet the design requirements of battery we use the existence of such a problem: When the battery is installed, the battery manufacturers have said VRLA battery under the float's life can reach more than 10 years, but in practice, when the battery is often a serious deterioration of the three years, the use of more than five years, and even fewer batteries. Of which there are two issues, one, in use for battery management and maintenance, there is no effective and reasonable manner, resulting in the deterioration of the battery at an early stage appears, and because there is no time found behind the battery, resulting in the accumulation of battery deterioration, intensified, leading to premature retirement battery pack. Second, the individual battery manufacturers exaggerate battery life.