Trojan t-1275 vs Signature series J150 RE

pianotuna wrote:
Hi Landy,

I can't find the post about a limit of 23 amps. I did find a reference to 21 amps.

I surmise the telecom battery has thicker plates--and that is no bad thing for a deep cycle battery. The trade off is slower charging rates.

Your situation is a bit unusual as you wish to go with just one house battery.

I'm getting different charging rates from different charging sources. The strange part is that the batteries seem to recharge faster from the alternator than from the Magnum inverter/charger. Strange because the amps going in from the alternator are lower than what the Magnum says it is providing. Strange too, because the voltage coming from the alternator is lower than the Magnum. Perhaps the Magnum is lying? I have no easy way to check that.

/\ This... I have no idea why I observed this on my last 3200 mile trip starting in the end of August, into the middle of September. But my 170 amp alternator, and AGM battery in the VW NOXtoberfest diesel Touareg seems to charge much faster than the measly 20 amps max the Megawatt shows off the Honda EU2000i, or 1000i or my solar panels.

What I pretty much have been assured of is that, based on observations of Mr Wizard, for daily useage cycling, up to 4.5 to 5 years can be expected before replacement, and that for how I camp, and if I stay on top of recharging it instantly to topped off daily, Mex seems to think I might die before my battery does.

My T-1275 had ZERO problems sucking down 37 amps at start out of my 30 amp megawatt, initially, especially in cold weather. If it's discharged deep enough, 60% SOC, it will suck those kind of amps down for a fair amount of time, until it gets to a 80 to 85% SOC.

Does it hurt the battery to charge at that rate? Only if it starts getting hot during the charging process.

If you are pressed for time to recharge, then pay the premium and get the AGM speed charging variety, as the fuel and gas it saves, if your alternator can keep up, while driving anyways short distances, will pay for itself.

I believe in top charging , daily, every single day I get the opportunity, for the longevity of the batteries life.

IMHO, and observations... no doubt about it, driving and charging up batteries with an alternator or on the grid with the Mega 30 for extenede lengths of time, shakes up the recharging regime, for the betterment of the battery, from the same old hum drum routine of solar panel recharging.