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Old 05-29-2019, 10:32 PM   #1
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Will LiFePO batteries fit in Forester (Ford) stepwell???

Very close to buying Lithium batteries to replace the 2 group 27 believed to be Exide originals in the step-well. When checking the spec's on both the Battleborn and Renogy batteries I have concerns as to whether they will fit with my cable setup. The lenght of the stepwell compartment with the shunt for the battery monitor is 26" and the height is 10" to the bottom of the top surrounding lip. The Battleborn battery height is 9" but will need the post adapters which may make it too high and their length is 12.75" each or 25 1/2" . That 1/2" clearance should be enough. The Renogy is shorter in length by a few inches, but their height is 9.7" leaving just 1/4" clearanace. That has me concerned about cables and will there be enough room for them to attach to the battery. Will I need to make custom size cables, I think so.?
Have any of you out there installed either battery and can give me some feed back and suggestions? Thanks.
And thank you Babcock for the chat today, learned a lot.
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Old 05-30-2019, 08:29 AM   #2
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Quote:
Originally Posted by Sagecoachdriver View Post
Very close to buying Lithium batteries to replace the 2 group 27 believed to be Exide originals in the step-well. When checking the spec's on both the Battleborn and Renogy batteries I have concerns as to whether they will fit with my cable setup. The lenght of the stepwell compartment with the shunt for the battery monitor is 26" and the height is 10" to the bottom of the top surrounding lip. The Battleborn battery height is 9" but will need the post adapters which may make it too high and their length is 12.75" each or 25 1/2" . That 1/2" clearance should be enough. The Renogy is shorter in length by a few inches, but their height is 9.7" leaving just 1/4" clearanace. That has me concerned about cables and will there be enough room for them to attach to the battery. Will I need to make custom size cables, I think so.?
Have any of you out there installed either battery and can give me some feed back and suggestions? Thanks.
And thank you Babcock for the chat today, learned a lot.
I have two LiFeBlue 150 amp lithium batteries for my solar system. One fits in the stairwell. The other is in the outside compartment next to the stairwell. I have a 2014 Solera. No cable modifications necessary.
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Old 05-30-2019, 08:46 AM   #3
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Here's photos of the step well battery compartment. My next-door neighbor with a toy hauler suggested using a buss bar outside the compartment along with the negative shunt and then only have one cable off the buss bar and the parallel battery cables to deal with on the positive side and one on the negative.
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Old 05-30-2019, 07:52 PM   #4
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I just measured my step well and both the Energized Outdoors 100ah and the Trojan 110ah Trillium will fit. They are both basically Group 27 size. Iíve been using the Energized Outdoors 55ah for the motor on my fishing kayak and Iím really impressed, it easily replaced two 35ah AGMís and saves 35 lbs. Now Iím really stoked to get them for my Forester, itís like getting a third battery for free and save a lot of weight.
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Old 05-30-2019, 08:07 PM   #5
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I'm really happy with my BattleBorn conversion, and babock was a great source of info to me, as well. Lighter, more usable energy, faster charge, 10 year warranty. They fit nicely in my Isata 3 step.
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Old 05-31-2019, 01:04 PM   #6
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Quote:
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Here's photos of the step well battery compartment. My next-door neighbor with a toy hauler suggested using a buss bar outside the compartment along with the negative shunt and then only have one cable off the buss bar and the parallel battery cables to deal with on the positive side and one on the negative.
Mine are in an Isata 3 but fit easily with room to spare. In fact I had to cut some foam pieces to keep them from moving around. Here is a picture.

Battle Born Batteries have a 3 year warranty but their Lifecycle is expected to be 10 years.
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Old 05-31-2019, 11:30 PM   #7
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Mimay12, is that a shut or a buss bar in between the two batteries?
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Old 05-31-2019, 11:59 PM   #8
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Need more than just batteries...

I just finished the full upgrade, in my 2018 FR Sunseeker 2400 MBS. In addition to the batteries, I needed to change out my PD converter/charger to a Li compatible version, and replace the Battery Isolation Manager system to a Li-BIM. I highly suggest you also add the Victron BMV-712, so you KNOW what is going on with your battery system.
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Old 06-01-2019, 07:43 AM   #9
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Mimay12, is that a shut or a buss bar in between the two batteries?
Its a shunt for a Victron BMV-712. I also highly recommend this monitor.
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Old 06-01-2019, 12:04 PM   #10
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My solar controls are in the trash compartment in the step well. The Xantrex Battery Monitor is almost 15 years old, but still works great!. Had to return my new controller to Renogy as it was putting 15.2v to my flooded coach batteries compared to my original controller that was 13.8v. Not happy with Renogy as they paid for return shipping and they will test it. If defective I will get a new one otherwise, I have to pay for shipping back to me. I should have used Amazon for a few dollars more than going direct to Renogy. No hassle with Amazon, easy exchange, no questions asked.
I have given it much thought and I can't use the Renogy batteries as they are too tall and if I hit a bump the terminals may hit the step. So I have to go with Battleborn. My concern about cable routing I think is solved and won't be adding a buss bar. I can do some cable re-routing and shorten a few cables or swap them around.
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