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Old 09-19-2022, 09:45 AM   #7
Tom47
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Join Date: Dec 2016
Location: Kingsland, Georgia
Posts: 1,825
Default Re: Comments about your Lithium Battery

Quote:
Originally Posted by mrmotoguzzi00 View Post
1) Brand of battery - RoyPow
2) Ah capacity - 105
3) Number of individual packs -
4) Pack voltage - 48v
5) Controller upgrade - Alltrax sr48500
6) Motor upgrade - Plum Quick Rattlesnake
7) Series, Sepex or AC drive - Series
O.D. Tire size - 23
9) Typical driving terrain - florida flat neighborhood
10) Estimated range on pavement - no clue
11) Average and Top speeds - 25 - 36+
12) Likes or dislikes - So Far the Battery has been flawless, it's almost 6mo
13) Additional comments - I like that you can shut it off... it charges fairly quickly... Carts Unlimited C54 Kit
Thanks for the info. Your speed is great. It would be interesting to see how the usage is on a long uphill climb at high speed.

Your 105 pack has about 85 usable Ah if you use 20% SOC as the minimum. You can use 10% minimum if you like, but I prefer more charge remaining just in case. Plus battery life will be extended if you keep the minimum at 20%.

If you can, take a 5 mile ride at any speed (keeping it fairly constant will give better results) and record the Ah used. Then divide the Ah used by 5.

Let's say you use 10 Ah. 10 / 5 =2 so your average "fuel usage" is 2 AH per mile. With 85 Ah usable, 85 / 2 Ah per mile = 42.5 mile range.

That would mean you have 42.5 mile range but still have plenty of Ah remaining to get back to the barn.

On level pavement at 15 to 18 mph, with 57.6 Ah usable down to 20% SOC my usage is 1.45 Ah per mile. So I have a 40 mile safe range. Due to speed variables, I consider 35 mile range adequate.
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