Tortooga Custom Works
Well-Known Member
- First Name
- Ralph
- Joined
- Nov 29, 2018
- Threads
- 80
- Messages
- 1,704
- Reaction score
- 1,619
- Location
- Central NJ
- Vehicle(s)
- 2020 Jeep Gladator Launch Edition | 2017 Jeep Grand Cherokee Limited
I totally understand what you mean. I don't think the smaller batteries are actually that much smaller, that's my point.I'm looking at AH, not CCA - basically the amount of time the battery can supply power, not the peak power the battery can supply. A physically larger battery can always run longer than a smaller one (when comparing apples to apples, not junk to expensive), so replacing a larger battery with 2 smaller ones that fit in the same space will give you less run time than adding a second large battery.
I can't find the exact stats for the stock battery, beyond the cranking amps...
But, if I look up on like autozone.com, I can find an H6 Duralast Platinum that fits in a JL Wrangler Rubicon with these stats:
760 Cold cranking amps (950 cranking amps). 120 reserve minutes.
The Odyssey batteries have a reserve of 130 minutes, each, according to their stats. So, I do think 2 are better than one here.
I think the other value is the way the Genesis Offroad dual battery kit works. It's actually smart in what it does. It's not just tying two batteries together:
Here's how it works.
What if your cranking battery is somehow drained down too low to be able to start the vehicle? We have a solution for that.
- When both your batteries are fully charged at 13.2 volts, they are automatically connected and are charged at the same time.
- When you park and turn off the engine, but continue to use accessories such as lights or the stereo or a CB, both batteries begin to drain down.
- When your main cranking battery reaches 12.7 volts, the smart isolator separates the batteries, so that your cranking battery will have enough power to start the engine. The second battery continues to power your accessories for as long as it will last.
- After you crank the vehicle, your main cranking battery will be charged up to 13.2 volts first, and then the isolator will begin charging your accessory battery. By only charging one battery at a time, your alternator is protected from excessive strain.
- Press the Start Boost button and the isolator will connect both batteries together for 1 minute, acting like built-in jumper cables to jump start your engine off your accessory battery.
- As long as the accessory battery has enough power, you'll be able to start your vehicle instead of being stranded with a dead battery!
- The alternator will charge both batteries for 1 minute, then switches back over to automatic mode to reduce the strain on your alternator.
Sponsored