Hello all,

I am looking at Trinity White Carbon Batteries. I have had some difficulty seeing their entire product line so for example I don't know if they have more than 2 4S batteries available, but that is a different problem for a different day. I am looking at the TEP2310 and the TEP2319. They seem to be very similar batteries, but two major things are different:

TEP2310
130C
144x47x37

TEP2319
60C
139x48x48

While I understand that C ratings are all fabricated, two products from the same manufacturer with vastly different C ratings have to indicate something - right? What can I conclude (if anything) from the C rating difference?

I am trying to fit this into a Tekno ET48 2.0 and the opening is 140mm long. Is the battery port size not standard across all Truggys? I have to assume not since there are soooo many batteries that are 144/145mm long. In fact, 139/140mm seems to be the exception.

If not for the C rating difference I would just buy the TEP2319.

Questions are highlighted. Thanks in advance.

Again a new topic in the search for a battery?

Hardcased is the standard most cars use but today plenty of mounting systems give some adjustment options. Just measure up the space you have and you will know what will fit.

Thanks for the post - do you have any thoughts on the questions I asked?

What can I conclude (if anything) from the C rating difference?
Is the battery port size not standard across all Truggys?

ROAR_Rule_Book.pdf (roarracing.com)

Page 74 and 75

My first reaction was the 60C battery was initially made several years ago and the 130C is newer. As far as battery port size, most use 5mm bullets today but used to use 4mm bullets a few years back.

But then if you take a 4S battery most of the times it has wires and an XT60 or XT90 connector

Hey folks. I called Trinity who has recently been purchased by Horizon Hobby. The TEP2310 and TEP2319 aren't on the website and aren't available through Horizon. Horizon looks to be replacing the TEP prefix with a TRI prefix. I left the conversation more confused then when I went in. I ended up going SMC:

https://www.smc-racing.com/index.php...product_id=723

It has the correct dimensions (which don't vary) and seems to have SMC's highest C rating. It also supports 5C charging which puts us in 30+ amps although it says it will reduce the life of the battery. At $60 this is a risk I am willing to take.

Surprised how hard it was to find Trinity batteries and how confusing their models and part numbers are - I guess with the purchase of the company they are in flux.

Yeah - I found this a little odd. I don't like bullets because every time I plug them in, there is a risk I reverse them. I only have to worry about this once for the connectors and this is when I solder them.

It's all about amps and watts.

Bullets can handle more current, but for the same power, you pull half the amps on 4S that you do on 2S. It's much easier to spec a power system that can use common XT series connectors on a 4S setup than on a 2S or 3S one. Plus you can get anti-spark XT connectors (which is more important for higher voltage, there's a higher spark risk on 4S than on 2S)

I'm a little surprised I don't see XT150's yet in use, some of the high-amp plane & heli guys are going there for the crazy high current capability and anti-spark, which is even more important on 10S and 12S power systems.

As a plane guy coming into the surface world, I'm really surprised by the low voltage/high amp power systems that are so popular for surface use, it really stresses packs & ESC's for a given wattage.

For those interested. Here are the details of the new battery on my charger. I am running it through a 3 cycle set and just captured this as a snapshot in time. Given that I really know nothing about IR and C rating, I am not sure if this is good or bad. This is SMC's battery with the highest C rating I could find (150C).

I don't even know if the IR is specified per cell or per battery - lol