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HobbyKing: LiFEPO batteries not showing


#1

I think I’m doing something wrong but I was on the European HobbyKing site with a view to ordering a LiFEPo and could not find any for sale.

Have HobbyKing stopped selling them or do they have a new name or am I just being thick (most likely)?

Suggestions for alternate vendors in Europe or the UK if HobbyKing have given up on them please.


#2

Andy
You need to use the filters, click on Chemistry and choose LiFE


#3

It is their website. I was looking at LiFePO4 only yesterday. I had to select LIPO, then use the search facility top left of the webpage. Hope this works for you. :slight_smile:


#4

OK, I can find some LiFEPO4 packs using Gerald’s method but only 2S i.e. 6.6V. Sure I can buy 2 and series them but no 4S packs show up. Odd.


#5

Maybe try this…

https://hobbyking.com/en_us/zippy-flightmax-4200mah-4s1p-30c-lifepo4-pack.html

Presumably you want this sort of capacity. :wink:


#6

Hi Andy

The Hobbyking website is a bit of a mare to navigate :frowning:

I bought a 4200mAh 4S1P LiFePO4 battery (as per Gerald’s link) last Thursday from the UK warehouse, delivered on Friday. I wanted two, but it would only let me order one so I suspected this may have been the last one they had in stock. They were available from the EU warehouse, but at 3 - 10 day delivery.

Hope you get what you’re after

73 de Paul G4MD


#7

Your HobbyKing search-fu is better than mine. Yes, I guess that’s what I want. I’ll need a new charger too. Something to order from Santa Claus…

I did some more checking and the voltage measured by a DVM reads a fair bit higher than the 817 display. Confused I checked against my 817ND and that reads accurately. I tried swapping power leads and the discrepancy remains. It works fine but reads low. That was what had me thinking the cell was not holding charge. Still I think I’ve had my money’s worth as I bought them the same time Gerald bought some. Time for some new toys!


#8

There is a calibration setting in the 817 extended menu to align the volt meter with reality. Or with your reliable trusted DVM.


#9

I remember now that my old 817 always read low and I’ll give it a tweak when I get a moment.


#10

I have two of the Zippy Flightmax 4200mha LiFePo4 and they work great.


#11

Little tip go on the web site find what ya want and do nothing for a while, sometimes they give an discount as got fiver off last time i was on there when brought me 8400mah last year. Its still going strong today with the proper Balanced charger.

Karl


#12

Sadly they don’t seem to be doing that now Karl :frowning:


#13

Arghh, does that mean mine are about to expire? Oh dear, they are only nine and a half years old. Long gone are the days when I was regularly buying new batteries for SOTA, but then they were sealed lead acid ones. I wonder how long the LiFePO4 ones will last.


#14

I need a LiFEPO compatible charger as my existing charger only does LiPO or LiION cells. I remember the IMAX B6 was well received but I see I can buy a genuine one for £33 or a clone for £18. Is there any real difference between them?


#15

I have two LiFePo4 Zippy 4200, I don’t use them often but do stick them on the balance/charger often. Unfortunately I noticed mid September that one of them has swollen slightly since the end of July and it is a tad over 4 years old. One of the cells is reading a bit higher than the rest.


#16

A quick read of the customer feedback at the HobbyKing web site reveals some unhappy customers with a common complaint on new LiFEPO battery quality.

As I haven’t seen anything untoward written here about quality, is it safe to assume our community is happy with the 4Sxx products?

Paul


#17

I bought a 4S1P Zippy LifePO battery from HobbyKing about 3 years ago. I have looked after it carefully, and it is still apparently in good condition. I’m probably not the heaviest user, though…

The reviews I have read recently on their website imply problems with the batteries on delivery, which almost rules out user error…

Adrian


#18

I’d seen the review comments so I checked the one I bought last week as soon as it arrived… each cell was 3.25V. Not had a chance to charge/discharge it yet…

Have decided to retain the stock 5.5mm bullet connectors rather than chop them off and fit Powerpoles though, just in case…

73 de Paul G4MD


#19

I must say, I found my 4200 mAh was dropping off peak voltage before I even connected a radio. If you have any doubts, send it straight back. I think someone here mentioned that the Imax B6 clones are junk and not properly calibrated. I’m happy with my original.
de OE6FEG / M0FEU
Mattt


#20

Regarding the chargers.

I have the SKYRC IMAX; B6AC Version 2, and the B6.

I have used both for 2-3 years and been very pleased with them.

The B6AC is my preference, and it has more features, and also enables you to measure cell impedance, which is a good indication of battery condition, and trends towards possible failures.

The B6 is smaller, and a bit more basic so I take it with me when I travel, particularly abroad, where weight and space is an issue.

Regards,
David