Trojan t-1275 vs Signature series J150 RE

[landyacht318]

Before winter, I need to get a dedicated flooded house battery, my Northstar AGM-27 has been working hard as both house and engine battery for the last 4 months, and I want to return it to engine starting duty/emergency capacity duty.

The battery I have been desiring and planning on, is the Trojan T-1275.

Recently, I became aware of the J150 signature series which is marketed as a renewable energy battery.

The case size is the same, but for handle differences which make the J150 3/4" wider. I can fit either, but no taller. No t105's, no J185s. Only the T-1275 or the J150, or Smaller. I am not going for any smaller flooded 31 or 27 size ever again. They are rated for only half the cycles as the t1275 or j150.

The J150 weighs 2 Lbs more than the T-1275, at 84Lbs
The J150RE also states it has an Absorption voltage range of 14.1v to 14.7v
The T-1275 says absorption voltage is to be 14.8v. No range, just 14.8.

What are we to infer by this Wide absorption voltage range on the RE line?

I was hoping it would mean the battery would be happier on my low and slow 198 watts of low and slow solar, compared to the golf cart's, 10 to 13% 'recommended' charge rate.

If this were true, would it then protest being fed a 30 to 50% rate from my alternator? My vehicle also will allow upto 14.9v and this is hammered in stone, just as no more solar is possible on my roof.

T-1275 Spec sheet

Signature Series J150 Renewable Energy

The Non RE J150 is also 84 Lbs, 2 lbs more than the T-1275, but also states 14.8v Absorption voltage.
Trojan J150

So, is the RE battery just a different sticker and a lower ABSV to appeal to the renewable energy market?

Kind of like how Condorde markets Lifeline AGM and SunExtender AGM lines while the specs and PDFs would indicate they are the same exact battery?

I know a call or Email to Trojan is in order, but I was hoping for Some MexWanderer pontification on these ponderables.

[JiminDenver]

I think it's a marketing ploy to attract solar users with names and terminology to match. Someday we will see a argument because one has renewable energy batteries and the other doesn't. lol

[landyacht318]

The regular J150 claims T2 technology, the J150 RE/signature/bayonette series/version does not state that in the link provided in the OP, but it does in this link:

http://www.trojanbattery.com/products/deep-cycle-flooded/signature-line-flooded/

I look forward to finding the Solar charge controller sweet spots with a New T-1275 or J150. it will basically be my first true deep cycle battery, instead of these group 27/31 quasi deep cycles I've been getting.


While I hope the solar can keep the future battery happy without regular application of alternator or MeanWell, I want the battery to be able to handle the MeanWell's 40 amps or the alternator's 55 to 75 average amps.


I'm going to have to relocate my windshield wiper reservoir to fit this battery, but at least I will be able to access all 6 cells easily, instead of just 3.

If the Screwy 31 lasted nearly 500 cycles, the T-1275 should get me 1000 and require less effort to reach that.

[BFL13]

My previously enjoyed ( two years golfing) T-1275s are still going great after two years with me. I deep cycle them or shallow cycle them, charge them fast or slow, doesn't matter as long as they get their shot of VEC1093DBD Equalize every so often.

After a recent week off grid they got home with SG in the red after slowly getting run down over the week. Got them back up with SGs 1.300 to 1.285. They seem to be getting better as they get used!

They act differently from the 6v batts and it doesn't work so well to pair the T-1275s with the 6s as one big bank for a long period of solar shallow cycles, but it is fine for a few days of successive 50-90s as long as you do the recoveries individually when you get back.

I would think a brand new T-1275 would last an RVer forever no matter what you did as long as you do the 100% every so often.

[westend]

The T-1275 has the newer paste and grid separators (T2 technology). I bet the J150 does not.