|04-24-2014 09:04 AM|
Other comments: The tray comes in two parts: the part where the batteries go, and then the forward part where you attach the solenoid and the TIPM (fuse module). The junction between these two parts is done through 4 bolts and washers and lock washers. I discovered I was not able to put in the batteries (the original group 34 and my new deep cycle group 24) without removing the washers and lock washers, otherwise the space needed for the batteries is too small. Yes, it's that tight.
Finally, I chose a marine-grade ACR (Automatic Charging Relay). What it does basically, is check the voltage of both batteries, and when one of the batteries goes over 13.2 volts for 1 minute, it connects them together, so the other one will be charged too. And when the voltage goes below 12.7 volts, then the two batteries are disconnected. For those interested, it's this item: SI-ACR Automatic Charging Relay - 12/24V DC 120A - Blue Sea Systems and I paid 100$ CAN for it, which is a nice price, and really simple to wire up (3 wires total)
I'm running my ARB fridge/freezer at -2C (approx 30F) for a week now with this setup, without modifying my normal driving habits, and everything works well, and the fridge did not lack power once. I'm really happy with the setup, and the peace of mind knowing that even if the fridge depletes the deep cycle battery, I'll still have a crank battery ready to go, as it was before the modification, and then the deep cycle will be recharged at my next engine start. Great for going fishing in the boonies... I can't wait! Unlimited pikes at 49deg latitude, yay!
The only drawback is that I cannot self-boost, for this I need booster cables that I carry with the jeep anyway. (And it occurs to me I need a boost every 5-6 years, otherwise I'm the one boosting the others...
|02-23-2014 08:23 PM|
|CombatDiver||Both responses are helpful. I think I'm ready to get a dual battery finally and with the plan to add some additional lights only pushes me that way.|
|02-23-2014 07:04 PM|
I know this post is about a year old but I found that the Genesis Offroad system is great! I just installed the kit and it is very high quality and totally complete! No wiring needs to be assembled! Ready to go and instructions are very complete.
|03-06-2013 09:12 AM|
|03-05-2013 10:38 PM|
|CombatDiver||That's unfortunate that Benchmark Designs doesn't appear to be in business anymore. There are other dual battery mount options out there and have to inquire on whether or not anyone upgrades their alternator to help maintain both batteries or is the stock alternator adequate? I just ordered a larger alternator (for other reasons) but my next planned purchase/upgrade is the dual battery on my 2009 Jeep Wrangler.|
|02-20-2013 01:59 PM|
|yomondo||For those of you who are not aware, it appears based on posts I read on various forums, that Benchmark Designs has been out of business since at least last July. Their website (www.benchmarkdesigns.com) no longer exists, and the email address I had for John (email@example.com), which worked last April, no longer works.|
|10-05-2012 11:05 AM|
|Rob1980||I think that looks very clean. And in your application, quite practical. Well done. May do the same.|
|08-21-2012 02:15 AM|
- 2 12-volt power ports
- lighted switch to turn on/off power to both 12-volt power ports
- separate 40 amp fuses and relays for each 12-volt power port
- 2 amp fuse on the power line for the switch led, the relay coils and the voltmeter
- 600 watt pure sine wave power inverter connected directly to the battery with a 150 amp fuse
I figured this could really come in handy at camp, as well as provide emergency power at home.
|06-20-2012 08:13 PM|
But, on the flip side, if the actual reliability of the stock alternator is sub par, or some manufacturer boasts some kind of increased performance guarantee, then this would be worth considering.
It would make it more Robust, though. Being able to quickly recharge your depleted batteries is always a plus. But there is a trade-off to be made.
|06-20-2012 07:26 PM|
|Vin||Think of it as a hose filling a bucket with a hole in it. The hole being your accessories, the bucket your battery and the hose the alternator. Too small a hose and the bucket will empty out, too large and the water just overflows and is wasted.|
|06-20-2012 06:41 PM|
Would a larger Alternator make this system more reliable?
maybe depend/deplete the batteries less during winch, lights, air etc operating?
|06-13-2012 12:25 AM|
|Vin||Well, I just got an email from the guage pod guy. Problems with manufacturing so I was refunded my money. I think I'm going to order a couple of stinger voltage gauges and mount them on my A pillar along with an led for when the batteries are connected.|
|06-05-2012 12:45 PM|
|Keep Moving Forward||
I'm looking into your link right now. Seems like a no brainer to me.
|06-05-2012 12:26 PM|
However, logically, you can buy their isolator (or a similar one), and a similar box with monitoring features such as this: Amazon.com: MinnKota Trolling Motor Power Center: Sports & Outdoors
That marine battery box has the voltage monitoring system, 2 12V outputs that have circuit breakers built in (low power and high power) + access to the posts.
What else do they provide? battery terminals and cable. That's about the extent of it. So, if you wanted to use their isolator at list price of about $160. That's $160 + $70 = $230, I'm sure you can get cables and terminals for less than the remaining $470... so hence why it seems bogus to me.
Sure, other will argue about box quality. But, the extra heavy duty boxes are $40 more, still putting you over $400 ahead.
|06-05-2012 12:02 PM|
Finally received most of a tray from Benchmark for my 2012 Wrangler. They actually ended up going with the vertical stack, not the usual side by side method used for the 07-11 JK's. Of course, I'm still missing the top clamp and hardware and stuff, so can't install it. But, at least the base is here... progress... going on 4 months now, but I guess since its the first run of these, others may have better luck when they figure out all the details.
I must say, the battery tray is top notch quality. The welds are great, penetrate thoroughly through the very sturdy metal they use. The finish is also top notch. I'm actually impressed with the tray, despite the extra long wait. Looks like they're making some changes there as well, as I've been getting regular emails with status. Even if it's always, "not yet, later, we're working on it" it makes the whole wait process easier not feeling like you're possibly getting ripped off.
|05-31-2012 03:00 PM|
|Keep Moving Forward||What opinions do people have about the National Luna Power Pack?|
|05-31-2012 12:58 PM|
|Keep Moving Forward||
Great ideas everyone and some fantastic, helpful write ups. Is it any wonder I hang out here?
Thanks, and Happy Jeeping
|05-30-2012 12:06 PM|
|05-30-2012 10:32 AM|
|05-30-2012 06:43 AM|
You have great dual setups
I would like to have that to but it will cost some for the 2012 Wrangler, cost about 435$ from Benchmark designs and then add two batteries and labor.
I will probaly install it later but know I am going for a 5 days camping trip and I will run my Waeco fridge cf-40 on the main battery on the day and on the night I will run the fridge on a secondary 80A battery. I have not done this before.
I use this item
Then I put my battery in a Batterybox and couple it to the fridge. I do not use fuses here because the fridge have two fuses.
More advanced setup here that I found on Youtube
Build a portable power pack for $25 - YouTube
|05-30-2012 05:29 AM|
Hey CG3, I wanted to let you know about a friend of mine who did a dual battery install in his 94 Rover. Dedicated beach/surf vehicle. He is a bit of a geek, so it explains quite a bit of why he did this. From what I can tell, same basic setup...except for something extra that may be of interest to you.
He also installed a solar panel on the roof to help with charging! It actually is kind of interesting in that he can run the radio, charge cell, etc. all the while the solar panel is charging "whichever" battery needs charging!
Kind of cool if you ask me. If you're interested, I can get photos and post them. I'll also get whatever details I can for you.
Just let me know.
|05-30-2012 04:51 AM|
|05-29-2012 06:26 PM|
|05-29-2012 06:15 PM|
|silver rubi||Where can I get this done?|
|04-20-2012 03:59 PM|
You can upgrade the batteries and/or add the relay/isolator at a later time to defray the cost.
|04-20-2012 03:52 PM|
I did not use any type of control module or solenoid to isolate the batteries. So, although I gained the extra power and capacity with the dual batteries, I do not have a "spare" battery for when the main battery dies. So I saved the cash, for now, and can always add it later. I don't have need for it. Yet.
|04-20-2012 02:49 PM|
|whoduexpect||Very cool...looks almost sci-fi...I would love to do this with mine eventually. My wife would probably argue that I can't justify the cost. I don't do much driving around in no-man's land. Awesome setup and good info though.|
|04-20-2012 02:32 PM|
|04-20-2012 02:21 PM|
Looking good. Did you isolate them? any details on that?
Also, wondering how much time you guys spend on the install of the tray. Assuming mine really does get shipped today or tomorrow, I'd like to plan the install accordingly. Ball park is alright.
|04-18-2012 08:57 PM|
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