My two Costco 6 volters have lasted 6 years and it's time to replace them. In looking around for the replacements I ran across a Golf Cart Supply Company offering Trojan BT-105s for a very attractive $69.99 each.I called them up and asked them what the difference is between the BT-105s and the T-105s. I was told the warranty on the BT-105's is 12 months vs. 18 months for the T-105s and they are rated at 210ah vs. 225ah. Other than that, they didn't have any more information.I like the fact that the Trojans are made in the USA. From the experts on this forum I know the Trojans are a high quality battery and at ~$70 seem like a superior value over the Costco 6ers at $89.Aside from what I've mentioned, does anyone have any more information on Trojan BT-105's? Thanks!

Plate thickness difference may enter the picture.Try and get a weight value on the BT-105. If it were merely a matter of capacity all factors could be weighed. Pun unintentional.But the warranty difference raised my eyebrows. A telephone call to Sta Fe Springs CA does not cost all that much. Plate thickness should be the keynote of the conversation. I'm curious to learn what you find out.

I've spent a bit of time looking at the Trojan site as well as my rather detailed Trojan app and see no mention whatsoever of a BT-105

It is a labeling from a battery distributor in Chandler and probably not knowledgeable about their products. The "BT" may refer to a Bayonet Top but is not a Trojan model number. All of the Trojan 6V T-105 batteries are 225AH and weigh 62 lbs. according to Trojan's data sheets. They may be selling at a discount because they are last year's batteries. I would try another call to the same distributor or a call to Trojan.

I have a pair of t125's and may add two more for my new to me TT. My last TT had 125's and when I sold it they were 10yrs old and still going strong. Make sure you get the Charge Wizard to plug into your dumb convertor charger to make it smart. That, checking fluid levels and nver discharging more than 50% led to along life. I expect the same with my new pair now that I going solar.

I too spent some time searching GOOGLE for the TROJAN BT-105 Battery with no specs results... All I found listed was just the T-105 part number.It is interesting that the EBAY listing does list it and also has the lower AH rating... They must be getting that info from something... The same EBAY seller also lists the Trojan T-105 for sale as well. I know these things keep changing - I just yesterday after reading a battery post found out INTERSTATE BATTERIES now has a full "GOLFCAR" line of batteries. Never knew about that until yesterday haha... Roy Ken

Looking for info on Trojan BT-105 Batteries | Good Sam Community

RedRollingRoadb
Explorer
Oct 20, 2014
This is the reply that I got from Trojan. Not sure what took so long but stuff happens.

Quote: We apologize for the late response:

Trojan Response:

Trojan makes a "Black Box" 6V golf cart battery which is rated at 210Ah. This battery is non-maroon and is made for Trojan partners based on their specifications for their private label brands. These batteries are made in the same facility, on the same production line as the maroon battery. The maroon T-105 will have a rating of 225Ah and not 210Ah. This battery will be similar to the T-605 which has a 210Ah rating. The manufacturing quality is the same, but performance will be below the T-105. End Quote
howardq99
Explorer
Sep 20, 2014
MEXICOWANDERER wrote:
14.0 is pretty mild juju. If you were say in Fargo with a temp of 52 then temp would matter a little more. So would equalization potential. Six cells in series should accept no more than 10-12 amperes when first connected then drop significantly.

In short, I wouldn't worry too much about 10 degrees :)

If you wish you can start the process at 6PM.

Will do! Thanks for the help!!!
MEXICOWANDERER
Explorer
Sep 20, 2014
14.0 is pretty mild juju. If you were say in Fargo with a temp of 52 then temp would matter a little more. So would equalization potential. Six cells in series should accept no more than 10-12 amperes when first connected then drop significantly.

In short, I wouldn't worry too much about 10 degrees :)

If you wish you can start the process at 6PM.
howardq99
Explorer
Sep 20, 2014
mena661 wrote:
howardq99 wrote:

Here in Phoenix we'll probably average about 90F over the next 10 days, should I dial back the volts and or the time a little?
Pull it back .168V.

I'm not sure how much I can fine tune the Mega-Watt but I'll shoot for 13.832 volts for thirty six hours!

Thanks again!
mena661
Explorer
Sep 20, 2014
howardq99 wrote:

Here in Phoenix we'll probably average about 90F over the next 10 days, should I dial back the volts and or the time a little?
Pull it back .168V.
howardq99
Explorer
Sep 20, 2014
MEXICOWANDERER wrote:
Thirty six hours at 14.0 volts will finish curing the plates assuming your air temperature will be around (averaged) 80F day and night.

Here in Phoenix we'll probably average about 90F over the next 10 days, should I dial back the volts and or the time a little?
MEXICOWANDERER
Explorer
Sep 20, 2014
Thirty six hours at 14.0 volts will finish curing the plates assuming your air temperature will be around (averaged) 80F day and night.

It is so easy to withhold extra Pb in the plate paste and reconfigure the pasting machine to render significantly thinner pasting of the grid that any deviation from guaranteed published specifications makes my knees wobble. Trojan or US Battery does not make intentional "over runs". When I custom spec'd a run of 8-D batteries from Trojan they manufactured "enough" extras to cover the inevitable 1-2% construction failures so common on custom runs. Surplus batteries were recycled - they never left the plant. When ABC battery custom ran four pallets of 24's and 27's for another customer, the battery failed 20-hour BCI specs and were sold at loss. "George" the president of ALCO battery just about stood on his head assuring me he could successfully build a 31 plate 8-D. One 80% DOD cycle per 12 sampled assured me he failed.

Forgive me for being suspicious.
howardq99
Explorer
Sep 20, 2014
MEXICOWANDERER wrote:
One more fast call to Trojan...?

Do you use the same plate paste and pasting thickness on the cheapies as you do on the T-105 batteries?

Sorry to pop your balloon.

No worries, my balloon was popped many moons ago:D I appreciate your wisdom and advise. The dealer still has great prices on the T-105s at only $30 more per battery so I'll probably go that route.

I read (but I can't find the thread again) about using the Mega-Watt to zap the new batteries with an initial charge to clean the plates up, I'll be ordering the Mega-Watt PS next week so if someone could share the procedure again it would be much appreciated!

Thanks again for the sage advise!
down_home
Explorer II
Sep 20, 2014
I can't wrap my head around being only .05 lbs lighter but having only 210 amp as opposed to regular T105s.
Sixty nine dollars sound like a bargain. Don't wait until your sitting at Tuscon's Caterpillar shop, a very good one and they have to get them from a Golf Cart Supplier. He quoted them one price until he found out it was for MH and upped the price about 15.00 per, I think. 640.00 for four T105's installed late on a Friday. The Cat dealer was simply outstanding.
MEXICOWANDERER
Explorer
Sep 20, 2014
One more fast call to Trojan...?

Do you use the same plate paste and pasting thickness on the cheapies as you do on the T-105 batteries?

Sorry to pop your balloon.

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