CSB EVX12300 12V 30Ah Sealed Lead-Acid Battery

What is the CSB EVX12300?

The CSB EVX12300 is a 12 V, 30 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.

What are the specifications of the CSB EVX12300?

Figures published by CSB in the EVX12300 datasheet (2026 edition), with the CSB price list attributes marked:

Nominal voltage: 12 V
Nominal capacity (CSB price list): 30 Ah
Rated capacity, 20-hour rate to 1.75 V/cell, 25 °C: 30 Ah
Rated capacity, 8-hour rate to 1.75 V/cell, 25 °C: 24.96 Ah
Maximum charge current: 9 A
Maximum discharge current: 400 A
Internal resistance: approx. 7.9 mΩ
Terminal: I1 threaded insert for M5 bolt
Container: ABS, UL 94-HB
Weight, approx.: 22.92 lb (10.4 kg)
Dimensions (L x W x H): 166 x 125 x 175 mm (6.54 x 4.92 x 6.89 in)
Case / group size (CSB price list): M34
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 EVX12300?

Request a quote by the part number EVX12300. 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.