2012–2017 Jeep Wrangler Battery Size (BCI Group and CCA)

Which Jeep Wrangler model years does this cover?

These battery specifications apply to every Jeep Wrangler built from 2012 through 2017 — the JK (2007–2018 platform; US 2012–2017 shown), off-road suv, solid front/rear axle (2-door; 4-door unlimited). Nothing in this specification changes between those model years. Pick your year for the engines it offered, what changed that year, and the problems recorded against it.

What changed during the 2012–2017 Jeep Wrangler

• 20123.6L Pentastar V6 replaces the old 3.8L V6 across the JK lineup; 5-speed automatic (W5A580) replaces the 4-speed
• 2013Moab special edition added; minor trim/options shuffle
• 2015Willys Wheeler and Rubicon Hard Rock special editions; no major mechanical changes
• 2017Final year of the JK before the JL replaces it for 2018, some 2018-titled JK-based 'Wrangler JK' models were sold as 2018 carryovers alongside the new JL; see JL generation notes

What size battery does a 2012–2017 Jeep Wrangler take?

BCI group 34/78 (also fits H6/Group 48), rated at 700 cold cranking amps from the factory. Group size is a physical dimension and terminal-position standard, so a battery from a different group may not clamp down or may put the terminals on the wrong side.

How many CCA does a 2012–2017 Jeep Wrangler need?

At least 700 CCA. Going higher is harmless and helps in cold climates; going lower is how a vehicle that started fine in October stops starting in January.

Does the 2012–2017 Jeep Wrangler need an AGM battery?

The factory battery is a conventional flooded type. AGM is a valid upgrade, but never downgrade from AGM to flooded.

Where is the battery on a 2012–2017 Jeep Wrangler?

Engine bay, driver side.

Does a 2012–2017 Jeep Wrangler need the battery registered after replacement?

Factory battery is a flooded/AGM Group 34 rated in the 700–800 CCA range depending on supplier; Group H6/48 batteries share the same physical footprint and bolt in.