At One Place

BCI Group 51R battery

What replaces a BCI Group 51R
Group 51R, 51R-
12 V lead-acid, 238 × 129 × 223 mm

The BCI Group 51R 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 51R
Nominal voltage
12 V
Chemistry
Lead-acid
Size
238 × 129 × 223 mm
Rechargeable
Yes

Codes that mean the same battery

Different manufacturers, one physical battery. Voltage, chemistry and dimensions all match.
Code Fits?
Group 51R Yes — same cell
51R- Yes — same cell

Codes that look close but are not

Code Why it is not a substitute
Group 51 The identical box with the terminals swapped left to right. The R means reversed. Fitting the wrong one either leaves the cables short or, worse, invites someone to stretch them across and connect backwards.

Where it turns up

  • Honda Civic, CR-V and Fit
  • Acura ILX and other Civic-based models
  • Nissan Versa, Juke and Cube
  • Mazda 3 and some Mitsubishi models

Common questions

What is equivalent to a BCI Group 51R?
Group 51R, 51R- — all the same 12 V cell under different manufacturer codes.
Can I use a Group 51 instead of a BCI Group 51R?
The identical box with the terminals swapped left to right. The R means reversed. Fitting the wrong one either leaves the cables short or, worse, invites someone to stretch them across and connect backwards.
Is the BCI Group 51R 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