CSB MSV-500 2V 500Ah VRLA-AGM Telecom Base Station Battery

Product Features

VRLA (Valve Regulated Lead Acid) battery
Maintenance-free, with AGM Absorbent Glass Mat technology and up to 99% gas recombination efficiency
Pure lead construction with proprietary elements
Designed for high-capacity float charge backup power applications
Manufactured to IEC 60896-21/22:2004 and UL1989 certified (MH14533)

Application Scenarios

Provides DC backup power for telecom base stations
Backup power for optical fiber access network central office equipment
DC power supply for microwave relay stations
Supports 48V DC systems in telecom equipment rooms
Backup power support for broadband access equipment
Backup power assurance for mobile communication core networks

Product parameters

Model：MSV-500
Voltage：2 Vdc
Nominal Capacity：500 Ah @10hr-rate
Ah Capacity：511.20 (8-Hr 1.75 VPC @ 25°C)
Ah Capacity：512.00 (20-Hr 1.75 VPC @ 25°C)
Ah Capacity：500.80 (8-Hr 1.80 VPC @ 25°C)
Max. Charge Current：150.00 A
Max. Discharge Current：3000 A
Short Circuit Current：7258 A
Internal Resistance：0.39 mΩ
Terminal Type：I4 thread copper alloy terminal to accept M8 bolt
Terminal Torque：126±25 Kgf·cm / 109±22 Lbf·in / 12.3±2.5 N·m
Container Material：Flame-retardant ABS (UL 94-V0)
Weight：31.20 / 68.76 kg / lb.
Length (L)：241.0±2.5 / 9.49±0.10 mm / in
Width (W)：171.0±2.0 / 6.73±0.08 mm / in
Height (H)：339.0±2.5 / 13.15±0.10 mm / in
Design Life：Up to 15 years in standby service at 25°C; Eurobat (20°C): >12 years, Very Long Life
Float Charging Voltage：2.21 ~ 2.25 Vdc/battery
Equalizing Charging Voltage：2.35 Vdc/battery
Operating Temperature：discharge -15°C to 50°C; charge/storage -15°C to 40°C

Product details

The CSB MSV-500 belongs to the MSV series and is a 2V valve regulated sealed lead acid battery utilizing AGM Absorbent Glass Mat technology, achieving a gas recombination efficiency of 99%. The manufacturer positions it as a large-capacity, long-life VRLA 2V battery, suitable for large-scale emergency and telecom applications. Nominal capacity 500Ah (1.80 VPC @25°C, 10-hour rate); at the 8-hour rate 1.75 VPC @25°C the capacity is 511.20Ah, at the 20-hour rate 1.75 VPC @25°C it is 512.00Ah, and at the 8-hour rate 1.80 VPC @25°C it is 500.80Ah. In terms of electrical parameters, the MSV-500 has a maximum charge current of 150.00A, a maximum discharge current of 3000A, a short-circuit current of 7258A, and an internal resistance of 0.39 mΩ. Float charge voltage is 2.21 to 2.25 Vdc/battery (25°C), and equalize charge voltage is 2.35 Vdc/battery (25°C). Stored at 25°C for 90 days, self-discharge is less than 10%, and it can be stored for 6 months; it must be fully charged before use. If storage temperature exceeds 25°C, a supplementary charge should be given in advance. In terms of construction, the MSV-500 is made with pure lead construction and a proprietary formula, features a flame-retardant ABS case (UL 94-V0), and is equipped with I4 threaded copper alloy terminals that accept M8 bolts, with a terminal torque of 126±25 Kgf·cm, 109±22 Lbf·in, or 12.3±2.5 N·m. Dimensions: length 241.0±2.5mm, width 171.0±2.0mm, height 339.0±2.5mm, weight 31.20kg (68.76 lb). Temperature conditions: nominal temperature 25°C (77°F), discharge temperature -15°C to 50°C (5°F to 122°F), charge and storage temperature -15°C to 40°C (5°F to 104°F). Design life is 15 years under float standby service at 25°C, and more than 12 years under the Eurobat (20°C) standard, placing it in the Very Long Life category. The product is manufactured according to IEC 60896-21/22:2004 and is UL1989 recognized (MH14533). The MSV-500 features a maintenance-free design, suitable for large-capacity float backup power scenarios such as telecom, and can be combined from 2V cells into higher-voltage battery strings to meet the long-life, high-capacity backup power requirements of telecom base stations and emergency power systems.