105 AH vs 160 AH
 

Going lithium after the first of the year. Currently, I have the Navitas 5 KW AC setup. My plan was to go with 105 AH Roypow. I’ve seen a few carts lately sporting 160 AH. Is there a big size/weight difference? I’m in Florida so pretty flat here. My cruises are generally 15-20 miles and my Trojans (6 months old) seem to hold up well even with stretches of 30+ mph cruising. Is it worth the extra $$$ to move up to 160?

Re: 105 AH vs 160 AH
 

More is always better; except with bikinis :mrgreen:

Re: 105 AH vs 160 AH
 

Hard to disagree with that statement!

Re: 105 AH vs 160 AH
 

Agreed. 100%.

Re: 105 AH vs 160 AH
 

Yup! There is no such thing as too much fun, too much horsepower, too many Amp Hours.
-:)

Re: 105 AH vs 160 AH
 

I have the 105ah and am very happy, but if the 160ah had been available, I would be happier. Bigger is better for the price difference.

Re: 105 AH vs 160 AH
 

Keep in mind the regular Roypow battery packs are only rated for 100 amps continuous discharge and 200 amps for a 10 second maximum discharge. This includes both the S51105 and S51160 Roypow packs.

I don't believe that the Roypow performance packs are available yet, but the S51105P and the S51160P Roypow packs are rated at 105 amps and 160 amps continuous discharge respectively. Both P packs have a 315 amp maximum discharge rate for 30 seconds.

Not only do you want to concern yourself with the amp-hour rating, but you also need to consider the discharge ratings of the battery offerings. I believe that your Navitas controller is rated for 440 amps ... I don't believe that you will want your battery pack to be the weak link in your system.

Do you know what your present amperage draws are for your various driving situations?

I suspect that your only choice (amperage wise) may be to wait until the S51160P pack becomes available.

See Roypow technical specs at the bottom of this page: https://www.roypowusa.com/?page_id=26237#bit_bzgti

Re: 105 AH vs 160 AH
 

The addendum to this is: More is always better; especially with bikinis on women over 60 and on speedo's on men over 60 (as this is an equal opportunity website) :shock:

Re: 105 AH vs 160 AH
 

I also have the 5kw Navitas, and would definitely wait for the higher current output. (I draw 200A, with short term draws up to 250 at 72 with would equate to more than 300A at 48V)

Re: 105 AH vs 160 AH
 

What would your typical "continuous draw" be on your cart?

Your short term amperage draw of 250 amps at 72 volts would equate to 375 amps at 48 volts ... which would exceed the maximum short term rating of even the largest Roypow pack at 315 amps for 30 seconds.

As dougrobling has documented, it takes some serious amperage to turn the wheels of the larger tired carts ... before you invest in lithium batteries, you want to understand the amperage requirements of your cart and match it with batteries that are capable of sustaining those amperage requirements ... otherwise you might just "suck the guts" out of those expensive batteries.