CSB TPL12400T Front Terminal Valve-Regulated Sealed Lead-Acid Battery 12V 40Ah
The CSB TPL12400T belongs to the TPL series, features a front terminal layout, and is a 12V valve-regulated sealed lead-acid battery; it is manufactured using a pure lead process combined with AGM technology, with a nominal capacity of 40Ah at the 10-hour rate. It is mainly used for float standby power applications such as telecommunications, with a design float life of up to 12 years.
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Product Features
- Its battery type is valve-regulated lead-acid (VRLA)
- Using AGM (absorbent glass mat) technology, gas recombination is highly efficient, with efficiency up to 99%, and no maintenance is required
- The construction uses pure lead and also incorporates proprietary elements
- Designed for float standby power applications
- Manufactured in accordance with IEC 60896-21/22:2004, and UL1989 recognition (MH14533) has been obtained
Application Scenarios
- Backup power — broadband access network equipment room
- Standby power — fiber-to-the-home central office
- DC power supply — telecom outdoor cabinet
- Long-duration backup — telecom base station
- Backup power supply — cable TV network node
- Power supply — broadband integrated service access point
Product parameters
- Model：TPL12400T
- Voltage：12 Vdc
- Nominal Capacity：40 Ah @10hr-rate
- Ah Capacity：40.64 (8-Hr 1.75 VPC @ 25°C)
- Ah Capacity：45.20 (20-Hr 1.75 VPC @ 25°)
- Ah Capacity：40.08 (8-Hr 1.80 VPC @ 25°)
- Max. Charge Current：12.0 A
- Max. Discharge Current：400 A
- Short Circuit Current：1256 A
- Internal Resistance：6.70 mΩ
- Terminal Type：I2 thread lead alloy terminal to accept M6 bolt
- Terminal Torque：51.7±10.3 Kgf·cm / 44.9±9.0 Lbf·in / 5.1±1.0 N·m
- Container Material：Flame-retardant ABS (UL 94-V0)
- Weight：15.0 / 33.06 kg / lb.
- Length (L)：280.0±2.5 / 11.02±0.09 mm / in
- Width (W)：105.0±1.5 / 4.13±0.05 mm / in
- Height (H)：195.0±2.0 / 7.67±0.07 mm / in
- Design Life：Up to 12 years in standby service at 25°C; Eurobat (20°C): >12 years, Very Long Life
- Float Charging Voltage：13.5 - 13.8 Vdc/battery
- Equalizing Charging Voltage：14.4 - 15.0 Vdc/battery
- Operating Temperature：discharge -15°C to 50°C; charge/storage -15°C to 40°C
Product details
In CSB's product line segmentation, the TPL12400T belongs to the TPL series and is a 12V valve-regulated sealed lead-acid battery, with terminals arranged at the front. Its core technology is an absorbed glass mat (AGM), with a maximum gas recombination efficiency of 99%, and the entire battery requires no water replenishment maintenance. The TPL series itself is positioned as a pure lead long-life product for the telecommunications field, adopts a front-access terminal design, and was developed for operating conditions in broadband applications requiring several hours of backup power; the officially listed application scope is telecommunications.
Regarding capacity data, when measured at 25°C, 1.80VPC, and the 10-hour rate, the TPL12400T has a nominal capacity of 40Ah. Also at 25°C, at 1.75VPC, the 8-hour rate gives 40.64Ah and the 20-hour rate gives 45.20Ah; at 1.80VPC, the 8-hour rate is 40.08Ah. For current parameters, the battery's maximum charge current is 12.0A, maximum discharge current is 400A, short-circuit current is 1256A, and internal resistance is 6.70 mΩ.
Regarding voltage and environmental conditions, at 25°C, the float charge voltage per battery is 13.5 to 13.8 Vdc, and the equalization charge voltage is 14.4 to 15.0 Vdc. The nominal operating temperature is 25°C; discharge is permitted from -15°C to 50°C, while charging and storage are permitted from -15°C to 40°C. After standing for 90 days in a 25°C environment, self-discharge is less than 10%; if stored at 25°C, it can be stored for up to 6 months, and before being put into service it must be fully recharged; if the storage temperature exceeds 25°C, the charging time should be moved up accordingly.
Regarding the casing and terminal structure, the battery case uses flame-retardant ABS material and meets UL 94-V0; the terminal is an I2 threaded lead alloy type, can be fitted with M6 bolts, and the tightening torque is 51.7±10.3 Kgf∙cm, i.e. 44.9±9.0 Lbf∙in or 5.1±1.0 N∙m. The overall dimensions are length 280.0±2.5 mm, width 105.0±1.5 mm, height 195.0±2.0 mm, and the total weight is 15.0 kg.
In terms of applications, the TPL12400T is designed for float standby power. Its design life under 25°C standby conditions can reach 12 years, and according to Eurobat's rating at 20°C it exceeds 12 years, placing it in the very long life category. It is manufactured in accordance with IEC 60896-21/22:2004 and has also obtained UL1989 recognition (MH14533). The front terminal configuration makes internal cabinet wiring and routine maintenance more convenient, making it suitable for float standby scenarios such as telecommunications that require long-duration backup.
