CSB EVX12400 12V 40Ah Sealed Lead-Acid Battery

What is the CSB EVX12400?

The CSB EVX12400 is a 12 V, 40 Ah valve-regulated lead-acid (VRLA) battery with absorbent glass mat (AGM) construction from the CSB EVX series (High Cycle). It is sealed and maintenance-free: it never needs water.

CSB designs this series for e-mobility and deep cycling.

CSB lists this part as a non-stock item, so availability and minimum order quantity are confirmed with your quote.

What are the specifications of the CSB EVX12400?

Figures published by CSB in the EVX12400 datasheet (2026 edition), with the CSB price list attributes marked:

Nominal voltage: 12 V
Nominal capacity (CSB price list): 40 Ah
Rated capacity, 20-hour rate to 1.75 V/cell, 25 °C: 40 Ah
Rated capacity, 8-hour rate to 1.75 V/cell, 25 °C: 31.52 Ah
Maximum charge current: 12 A
Maximum discharge current: 400 A
Internal resistance: approx. 8.2 mΩ
Terminal: I2 threaded insert for M6 bolt; CSB price list options: B2 / I
Container: ABS, UL 94-HB
Weight, approx.: 29.07 lb (13.2 kg)
Dimensions (L x W x H): 197 x 165 x 170.4 mm (7.76 x 6.5 x 6.71 in)
Case / group size (CSB price list): M40
Design life: 400 cycles at 100% depth of discharge, 25 °C; 1800 cycles at 30% depth of discharge, 25 °C
Discharge temperature range: -15 to 50 °C
Equalize / cycle charging voltage: 14.4 – 15.0 V per battery at 25 °C (77 °F)
Standards (CSB datasheet): IEC 60254-1:2005 / IEC 60254-2:2008, UL1973 Listed (MH66728) and UL1989 Recognized (MH14533)

How do I request a quote for the CSB EVX12400?

Request a quote by the part number EVX12400. Tell us the quantity you need and, where CSB lists more than one terminal or case option, which one. We confirm price, availability and lead time with the quote.