Trojan t-1275 vs Signature series J150 RE

Jim in Denver has hit it point center. You would not believe internal wars that go on inside battery company board rooms. My preference leans -strongly- toward companies that have genuine engineers steering the boat. Rolls & Surrette, Trojan, Lifeline, Deka. I have tasted the insanity in sales oriented leadership and it gives me a stomach ache. When it doubt believe the engineer oriented companies.

There are companies out there who employ substandard engineers, play copycat except they spend 50% of the time cutting corners and expenses, and the remaining 50% stamping out fires from mismanaged production. It is sad. They pay salesmen as much salary and commission as they do engineer's salary.

Your hydrometer makes you BS proof with regards to properly charging a flooded battery. What you do not and can not know is how high the pallets of warranty batteries are stacked on the back loading dock.

Trojan industrial batteries are expensive. Yet the company is extremely competitive sales-number-wise and it is flourishing as compared to some others. Use wisdom. How can a more expensive product compete with a competitor. All of these companies have been around a long time. Long enough for things to have naurally sorted and sifted. Rolls is even more extremely price biased. Yet they cannot build enough batteries to satisfy demand. Why is that? Hypnosis? Billboards placed alongside interstate highways?

My products were always expensive. Priced alongside factory reman alternators. Yet production never slowed. It is entirely stupid to produce a "me-too" product and enter the price-war arena. Illegal alien laborers, wrong side of the tracks warehouses and scumbag makeshift delivery systems are impossible to fight. Producing a better than OEM reman, better than factory brand new alternator was easy for me. Then I managed to end up at UCLA med-center and The City of Hope. My health failed me. But memories of "I drove up here from Oceanside, because..." was my reward. Excellence has it's advantages. It was the only way I could carve a niche.

It's exactly the same with batteries. When a company puffs its chest out and says "We Lead!" pay attention. I never did get a reply back from Fullriver regarding the thickenss of their positive plates. That one glaring omission decided things for me.

Again, use wisdom and it will lead you true.

An email response from Trojan on the matter revealed nothing that could not be read in their online documentation.

Very disappointed. Insulting really.

According to the response, 82# = 84#, and they did not even attempt to address the 14.1v to 14.7v absorption voltage range of the RE signature series.

And 10 to 13% recommended rate was amended to maximum rate.

Loss of confidence in the product/company.........

Perhaps that 150AH Lifeline gpl-30XT would be better since it can obviously handle the large currents I will throw at it.

I'll not be seeking a used tellycom battery, and if a single one self limits to ~23 amps as Niner reports, then that would double the amount of driving I'd need to do to replenish the same amount on a depleted battery.

Much of my driving is of short distance. The battery needs to be able to gobble up 55 to 75 amps for 5 to 10 minutes.

The Screwy 31 handled it

Hi,

I'll never go back to flooded batteries for the 'house'. If used telecom batteries are available and not too tall they will accept charging from driving wonderfully well. The same seems to be true for charging at idle.

What ever is easiest to install and get in and out of your rig, for replacement, or water adding, or hydrometer dipping, or... convenience... Or go for price, the T-1275's are probably less expensive, a lot of golf carts can use them.

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

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.

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.

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