48v Pansonic GA 17.5ah Black Killer Whale Ebike Pack from Luna Cycles
- Thread starter MazzyScar
- Start date
mrgold35
Well-Known Member
I was thinking about getting a spare battery for my Radrover because I use 1-2 bars more on a +20 miles ride trying to keep up with my wife (I'm 270lbs and she is 130lbs).
Looks like the tray the battery sits on has a longer raised lip near the bottom where the battery power connects?
How much more range/power does this battery give you compared to the standard one? Don't want to carry a second battery around if this one can do the trick.
Looks like the tray the battery sits on has a longer raised lip near the bottom where the battery power connects?
How much more range/power does this battery give you compared to the standard one? Don't want to carry a second battery around if this one can do the trick.
Scott Briggs
New Member
You will need to replace the tray IF the battery itself will fit within the triangle. It looks like it's a couple of inches longer than the original so it might be too tight, if I was close to my Rover I'd measure the triangle to get a better feel...
The 48v Dolphin is a direct replacement, (Link Removed - No Longer Exists)
The 48v Dolphin is a direct replacement, (Link Removed - No Longer Exists)
harryS
Well-Known Member
I agree with mrgold. The whale bracket looks quite different from a dolphin bracket.
Range on an e-bike is proportional to the AH rating of the battery. The Luna whale is 17.5AH, which is 52% more than the standard 11.5AH radrover. So figure 50% more range. If you got 30 miles before, now you got 45, etc. If you're a battery miser and got 40, that bigger battery promises 60.
Looking at the 13.5AH vs 11.5AH Dolphins, there's a 17% increase. Same math.
Actual mileage of course depends on average speed, wind, rider weight, and how much you pedal, but assume that doesn't change much, and you can simplify it to the AH rating of the battery.
.
Range on an e-bike is proportional to the AH rating of the battery. The Luna whale is 17.5AH, which is 52% more than the standard 11.5AH radrover. So figure 50% more range. If you got 30 miles before, now you got 45, etc. If you're a battery miser and got 40, that bigger battery promises 60.
Looking at the 13.5AH vs 11.5AH Dolphins, there's a 17% increase. Same math.
Actual mileage of course depends on average speed, wind, rider weight, and how much you pedal, but assume that doesn't change much, and you can simplify it to the AH rating of the battery.
.
walawn
Active Member
@MazzyScar This pack will give you more range at the same Ah, or you can add 2 more Ah for $30:
(Link Removed - No Longer Exists)
Plus, your Radrover will have better acceleration, torque, and top-speed. I did this to mine the first month and the controller and motor handles the increased voltage fine. The stock system is very overbuilt for the amperage and voltage that RPB chose to run through the system.
(Link Removed - No Longer Exists)
Plus, your Radrover will have better acceleration, torque, and top-speed. I did this to mine the first month and the controller and motor handles the increased voltage fine. The stock system is very overbuilt for the amperage and voltage that RPB chose to run through the system.
mrgold35
Well-Known Member
I'm not 100% sure what would be the better solution: long range+high power 48v 13.5ah for $459 OR long range + high power cell 52v 13.5ah for $435?
The 52v 13.5ah looks like a more powerful battery pack AND has a cheaper price; which, doesn't make sense to pay more for less with the 48v version? I'm thinking it might be a typo on the website for the 52v version.
The 52v 13.5ah looks like a more powerful battery pack AND has a cheaper price; which, doesn't make sense to pay more for less with the 48v version? I'm thinking it might be a typo on the website for the 52v version.
mrgold35
Well-Known Member
Thanks for the clear up!
I'm hoping the battery upgrade will fit exactly like the old battery. I added a Luna Cycle cover; but, that doesn't look like it takes up too much additional space with the old battery.
I would like to hear about any performance and range boost with the new battery once you make your rounds with it. We had a wind storm move in yesterday with 25 mph head winds and 30-35 mph gust for my +6 mile ride home (and +500 feet in elevation gain). I was 100% charged at work and arrived home at 2 bars. The Radrover was between 500-740 watts the whole time. Might not of made it home if I lived +10 miles out.
A little extra range and power wouldn't hurt.
Last edited:
walawn
Active Member
Okay, so I got my Luna 52v 13.5h dolphin pack. I got the advanced charger which shows how many volts the battery is at. Full charge is around 58 volts, a bit more. I took my bike for a 3 mile ride and the difference I noticed is that it starts faster from a dead stop with the throttle. I'm pleased that it fits right in the same holder that saves some work and also means I now have 2 batteries. I want to do full range test. I would have went farther today but it 32 degrees out and I'm still trying to figure out how many clothes I need to wear. My hands and chest got a bit cold today. I'll wear a heavier outer jacket next time and I have warmer gloves too.
walawn
Active Member
@woodusa I would recommend a battery back and to add insulation to the bag. Batteries dislike extreme cold or heat, and that can degrade the performance. A battery is basically a chemical reaction and temperature can slow it down. Think about how many car batteries die in the winter. I've added bags and insulation to both of my ebikes.
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