At One Place

BCI Group 34 battery

What replaces a BCI Group 34
Group 34, 34-, Group 34/78 (dual terminal)
12 V lead-acid, 260 × 173 × 200 mm

The BCI Group 34 is a rechargeable 12 V lead-acid prismatic. The codes below are the same physical cell sold under different manufacturer names, and any of them will fit.

Specification

IEC designation
BCI Group 34
Nominal voltage
12 V
Chemistry
Lead-acid
Size
260 × 173 × 200 mm
Rechargeable
Yes

Codes that mean the same battery

Different manufacturers, one physical battery. Voltage, chemistry and dimensions all match.
Code Fits?
Group 34 Yes — same cell
34- Yes — same cell
Group 34/78 (dual terminal) Yes — same cell

Codes that look close but are not

Code Why it is not a substitute
Group 78 Same footprint but side terminals rather than top posts. The dual-terminal "34/78" has both and fits either application, which is why it is stocked so widely.
Group 24 Same length and width, 25 mm taller. In a tight engine bay the hood may not close over a 24.

Where it turns up

  • Dodge Ram, Jeep Grand Cherokee and Chrysler models
  • Many GM cars and light trucks
  • Performance and AGM upgrades
  • Marine dual-purpose service

Common questions

What is equivalent to a BCI Group 34?
Group 34, 34-, Group 34/78 (dual terminal) — all the same 12 V cell under different manufacturer codes.
Can I use a Group 78 instead of a BCI Group 34?
Same footprint but side terminals rather than top posts. The dual-terminal "34/78" has both and fits either application, which is why it is stocked so widely.
Is the BCI Group 34 rechargeable?
Yes. Use a charger made for its chemistry and never substitute a primary cell of the same size.

Related pages

Sources

  1. Official vendor product documentation — At One Place

How these figures are compiled and checked