Revolectrix

[NativePaul]

I just received 2x 3s 5500mAh Revolectrix silver packs and one had a cell that was .19V low compared to the others, which is the worst balanced pack I can recall receiving. I don't believe IRs are transferable between chargers, just useful for comparison on that charger but for what it is worth one was 8mo the other 7mo, an Overlander extreme (Fullymax) 65c 1200mAh 3s pack that I bought for my mini hydro the same week was 7mo, all unused taken from the first charge.

All had thinner wire than I was expecting, 10g for the Revos where I would have thought 8g would be more suitable, and 16g for the Overlanders where I would have thought 12/14g would be more suitable, at some point I will rewire them all.

[kfxguy]

I just received 2x 3s 5500mAh Revolectrix silver packs and one had a cell that was .19V low compared to the others, which is the worst balanced pack I can recall receiving. I don't believe IRs are transferable between chargers, just useful for comparison on that charger but for what it is worth one was 8mo the other 7mo, an Overlander extreme (Fullymax) 65c 1200mAh 3s pack that I bought for my mini hydro the same week was 7mo, all unused taken from the first charge.

All had thinner wire than I was expecting, 10g for the Revos where I would have thought 8g would be more suitable, and 16g for the Overlanders where I would have thought 12/14g would be more suitable, at some point I will rewire them all.

Contact John and see what he says about the low cell....

[TheShaughnessy]

What charger are you using?

Tp820cd.

[kevinpratt823]

Hey Doug, I know the IR are more a point of reference, and you're comparing to IR's you've been reading on the same charger, so it wouldn't change the high vs. low readings by comparison, but have you updated your firmware on your charger to 5.86? One of the changes was

"Note: IR Reading of this firmware are lower than of 5.52 and earlier, it is on purpose to align the Hyperion chargers against other on the market so they show fairly the same."

Again, I'm not saying it will change the discussion, just making sure you knew about it. It's right here if you haven't yethttp://media.hyperion.hk/dn/pc/eosfw.htm

[785boats]

Yep. I picked up 6 mph too. I know someone who picked up 8 but he wasn't running a high dollar battery. For the money, you CANNOT beat these. Period.

From Gary.

Ok this is what I found.I am sure I will get beat up for this but here goes. On average about 1,800 --2,000 rpm more than my Thunder Powers...46,500rpm and is more than I have ever seen. Voltage drop was one volt less and ripple about 1.8 max for what ever thats worth. Batteries warmed to 90* as I always do with lake about perfect as always. Boat picked up 6 mph over its average and tested many times.
At half the cost of Thunders I am sold on them for my boat. Only have old vid for some viewing fun and with the guy fishing it killed my day after one pass!
https://www.youtube.com/watch?v=fkKN...ature=youtu.be

Guys.
Is that with the packs charged to the full 4.27v/cell, or the normal 4.2V?

Cheers.
Paul.

[kfxguy]

From Gary.


Guys.
Is that with the packs charged to the full 4.27v/cell, or the normal 4.2V?

Cheers.
Paul.

I picked up 6 mph charged to 4.20. I only picked up 1 more mph charging to 4.27v.

[keithbradley]

I don't believe IRs are transferable between chargers, just useful for comparison on that charger

I agree. Most people "in the know" say the method used by chargers is not exactly accurate in determining true IR, and they definitely vary depending on what charger you're using.
It's still relative though, so if you get 2mO on one brand of packs and 7mO on another, that's significant.

Are you getting lower IR readings on other packs or is 7mO fairly low on your charger?

[785boats]

I picked up 6 mph charged to 4.20. I only picked up 1 more mph charging to 4.27v.

Thanks pal.
That's good info.
I never gps'd mine but they were definitely a stronger pack, when charged to only 4.2V, than other packs that I use, Entropy, Hayain, CHL, & Dinogy. Lower voltage depression under load, cooler running, & a bit quicker. I can actually hear the difference from both motor & prop noise. Or do I just convince myself of that.

[NativePaul]

7-8mO is the lowest I have seen on my charger so I am happy with that, most of my cells are around double that, but my experience of high C cells is very limited as I race on "20-25C" cells, which offer much higher energy density and are better for the endurance racing with limited battery weight that I do under Naviga rules. I did have a set of ThunderPower 4s 5000mAh "60C" cells a few years ago, and they were 9mO on the same charger.

[ray schrauwen]

I had this at first also but, after a bit of sow charging and an easy cycle or two in a boat and they are juuust fine and still kicking booty.
Maybe not that big a difference but, Id have to check my emails to them.

I just received 2x 3s 5500mAh Revolectrix silver packs and one had a cell that was .19V low compared to the others, which is the worst balanced pack I can recall receiving. I don't believe IRs are transferable between chargers, just useful for comparison on that charger but for what it is worth one was 8mo the other 7mo, an Overlander extreme (Fullymax) 65c 1200mAh 3s pack that I bought for my mini hydro the same week was 7mo, all unused taken from the first charge.

All had thinner wire than I was expecting, 10g for the Revos where I would have thought 8g would be more suitable, and 16g for the Overlanders where I would have thought 12/14g would be more suitable, at some point I will rewire them all.

[Brushless55]

Thanks pal.
That's good info.
I never gps'd mine but they were definitely a stronger pack, when charged to only 4.2V, than other packs that I use, Entropy, Hayain, CHL, & Dinogy. Lower voltage depression under load, cooler running, & a bit quicker. I can actually hear the difference from both motor & prop noise. Or do I just convince myself of that.

Sexy noise !

[TheShaughnessy]

When you guys are talking ir numbers are you looking at the entire pack or individual cells. I tend to just look at individual cells. All cells on one of the packs I got from kieth read 1, but the whole pack was at three. The other was 1 2 1 2 respectively . The whole pack measured 7 though. These are 4s packs , it would make sence to see more IR as cell count increases.

[NativePaul]

I believe my charger gives resistance figures for the whole pack. I know things will get a little better after a few cycles and indeed I did intend to put a couple of cycles through them on the charger before use, but with a 3+ hour initial charge to balance them I didn't have time.

The balance issue doesn't really bother me, these are for only for SAWs and will never get discharged below half way so it won't damage them, and they will get very infrequent use. Even if John was to send me a replacement pack on spec without me having to send my pack back to him (which I wouldn't expect him to) it would not be worth it, as I would have to pay duty and postal fees of at least $30 to get them into the country, on top of what he pays for the cells and postage. I will save us both money by putting up with longer charge times, which is not really an issue now I am expecting it.

[urbs00007]

revo

Ok this is what I found.I am sure I will get beat up for this but here goes. On average about 1,800 --2,000 rpm more than my Thunder Powers...46,500rpm and is more than I have ever seen. Voltage drop was one volt less and ripple about 1.8 max for what ever thats worth. Batteries warmed to 90* as I always do with lake about perfect as always. Boat picked up 6 mph over its average and tested many times.
At half the cost of Thunders I am sold on them for my boat. Only have old vid for some viewing fun and with the guy fishing it killed my day after one pass!
https://www.youtube.com/watch?v=fkKN...ature=youtu.be

hi gary, were the thunderpower batteries in the same shape as the revo's. if so, then the increases were valid. guessing your new speed would be around 110 mph? fill us in.

[oscarel]

So, something I normally don't do. Out testing esc settings and ran my HV 10s2p set down to 6%, no puffing or heat. Other brands that were run down to 20% didn't fare quite so well. Just ordered a set of the 60c's to be legal for next year.