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

29 Replies

howardq99
Explorer
Sep 13, 2014
MEXICOWANDERER wrote:
I would be extremely hesitant if the batteries had white cases and red tops

Only maroon cases and tops with TROJAN molded right into the plastic is an ironclad guarantee of origin.

Take a voltmeter with you. I've run into too many shady dealers who were not above exchanging alphanumeric date code stickers for "fresher" ones. These flakes never charge old stock and thus finding batteries with 12.40 volts is not uncommon. Check half a dozen. Phoenix is a golfing area. Something does not add up...IMO

Thanks for the safety tips! I'll grab the voltmeter and start poking around. What would the ideal volt reading be for a T-105? I'll try to swing by next week and report my findings back here...

Thanks again for all the help!
MEXICOWANDERER
Explorer
Sep 13, 2014
I would be extremely hesitant if the batteries had white cases and red tops

Only maroon cases and tops with TROJAN molded right into the plastic is an ironclad guarantee of origin.

Take a voltmeter with you. I've run into too many shady dealers who were not above exchanging alphanumeric date code stickers for "fresher" ones. These flakes never charge old stock and thus finding batteries with 12.40 volts is not uncommon. Check half a dozen. Phoenix is a golfing area. Something does not add up...IMO
BFL13
Explorer II
Sep 13, 2014
"B" means "blemished" in the solar panel world. Means it still works, but has a bent frame or whatever. Like "scratch and save" at the appliance store.

No info whether that applies to the OP
howardq99
Explorer
Sep 12, 2014
I too searched all over the Trojan website and the internet and could not find any mention of the "BT-105". Today after work I called the Trojan Battery tech support line and they never heard of the BT-105 either.

I think I'll have to visit the distributor and see what they have cooking. Hopefully, as westend suggests, they are Bayonet Tops! Do you think it would be okay to purchase them if they were last years batteries?

Thanks for all the replies, this forum and the members are GREAT!
RoyB
Explorer II
Sep 12, 2014
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
Crabbypatty
Explorer
Sep 12, 2014
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.
westend
Explorer
Sep 12, 2014
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.
SCVJeff
Explorer
Sep 12, 2014
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
MEXICOWANDERER
Explorer
Sep 12, 2014
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.

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Looking for info on Trojan BT-105 Batteries

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