20% off Green Series LiFe packs from MaxAmps.com

Tech support is available through http://www.maxamps.com via email, live support or phone. I am not a tech support representative; I am in Marketing. These cells are rated at 60C burst. They are very robust cells and take a lot of abuse. Hence the 5-year warranty. Hope this helps - Brandon

[lutach]

"Note: This is ONLY to be used to report spam, advertising messages, and problematic (harassment, fighting, or rude) posts."

That is what it says when you click on the report link and the OP has clearly done a spam and advertising message.

[Arct1k]

Mike still sells (or has listed) Maxamps packs - If he'd like to remove it he can...

Otherwise this poor dead horse...

[josh9mille]

I could have swore this thread was in the product review section. Did it get moved or am I losing it?

[whitrzac]

Originally Posted by josh9mille

I could have swore this thread was in the product review section. Did it get moved or am I losing it?

BrianG, RCM niinja....

[Arct1k]

Nope...

[C-5Quad]

I found some good reading about the different materials used in Li-cell building and how each changes the cell and FEPO are the most stable so far and also cheep to build so maybe a 90% off will get me to buy a few.........but really a good read for thoes interested

Figure I would post something worth reading in this thred

There’s Not One Lithium Ion BatteryCrucially, there is no one lithium-ion battery, although this mistake is often seen in the press. Several different chemical formulations for the electrodes compete; each has its pros and cons. “No chemistry will be the perfect one,” says Klaus Brandt, the chief executive of Gaia, a German cell maker. The anode (or negative electrode) is typically made of graphite, but the cathode (positive electrode) chemistry varies widely. As much as any other factor, what the cathode is made from determines the cell’s capacity. The critical feature is the rate at which the cathode can absorb and emit free lithium ions. Each of several competing cathode materials offers a different mix of cost, durability, performance, and safety. Let's take a look at the most important cathode contenders.

Cobalt Dioxide
Cobalt Dioxide is the most popular choice today for small cells (those in your mobile phone or laptop). It’s been on the market for 15 years, so it’s proven and its costs are known, though like nickel, cobalt is pricey. Cobalt is more reactive than nickel or manganese, meaning it offers high electrical potential when paired with graphite anodes, giving higher voltage. It has the highest energy density—but when fully charged, it is the most prone to oxidation (fire) caused by internal shorts. This can lead to thermal runaway, where one cell causes its neighbors to combust, igniting the whole pack almost instantly (think YouTube videos of burning laptops). Also, the internal impedance of a cobalt cell—the extent to which it “pushes back” against an alternating current—increases not just with use but with time as well. That means an unused five-year-old cobalt cell holds less energy than a brand-new one.


Cobalt dioxide cells are manufactured by dozens of Japanese, South Korean, and Chinese companies, but only Tesla Motors uses them—6,831 of them to be specific—in an electric car. Their pack uses sensors, cell isolation, and liquid cooling to ensure that any energy released if a cell shorts out can’t ignite any of its neighbors.

Nickel-cobalt-manganese (NCM)
Nickel-cobalt-manganese (NCM) is somewhat easier to make. Manganese is cheaper than cobalt, but it dissolves slightly in electrolytes—which gives it a shorter life. Substituting nickel and manganese for some of the cobalt lets manufacturers tune the cell either for higher power (voltage) or for greater energy density, though not both at the same time. NCM remains susceptible to thermal runaway, though less so than cobalt dioxide. Its long-term durability is still unclear, and nickel and manganese are both still expensive now. Manufacturers include Hitachi, Panasonic, and Sanyo.

Nickel-cobalt-aluminum (NCA)
Nickel-cobalt-aluminum (NCA) is similar to NCM, with lower-cost aluminum replacing the manganese. Companies that make NCA cells include Toyota and Johnson Controls–Saft, a joint venture between a Milwaukee automotive supplier and a French battery firm.

Manganese oxide spinel (MnO)
Manganese oxide spinel (MnO) offers higher power at a lower cost than cobalt, because its three-dimensional crystalline structure provides more surface area, permitting better ion flow between electrodes. But the drawback is a much lower energy density. GS Yuasa, LG Chem, NEC-Lamilion Energy, and Samsung offer cells with such cathodes; LG Chem is one of two companies competing to have its cells used in the Chevrolet Volt.

Iron phosphate (FePo)
Iron phosphate (FePo) might be the most promising new cathode, thanks to its stability and safety. The compound is inexpensive, and because the bonds between the iron, phosphate, and oxygen atoms are far stronger than those between cobalt and oxygen atoms, the oxygen is much harder to detach when overcharged. So if it fails, it can do so without overheating. Unfortunately, iron phosphate cells work at a lower voltage than cobalt, so more of them must be chained together to provide enough power to turn a motor. A123 Systems—which is competing for the Volt contract as well—uses nanostructures in their FePo cathodes, which it says produces better power and longer life. Other manufacturers include Gaia and Valence Technology.


--------------------------------------------------------------------------------

[J57ltr]

Originally Posted by brandonwilcox

Tech support is available through http://www.maxamps.com via email, live support or phone. I am not a tech support representative; I am in Marketing. These cells are rated at 60C burst. They are very robust cells and take a lot of abuse. Hence the 5-year warranty. Hope this helps - Brandon

Well you are not doing a very good job. Promises, promises and they are all broken.

YOU said you were going to post the graphs and YOU didn't do it.

I have sales guys come in all the time and when they don't deliever on what they say I move on to another brand and usually stick with them. This has been the case with Max Amps I have seen you guys come in and NEVER deliever on what you claim. Thus I will not buy your product. It's not just this board it's everywhere and even people I meet.

Just because you pay big money for a mag to say good things about you (they never say anything bad about anything for fear of pulling ad space), and you have meaningless awards from the same mags it doesn't mean squat.

Again we ask you for graphs on the TRUE 150C packs. That crappy 7C discharge you posted up was just awful and we are supposed to be impressed? I have seen better performance from a leyden jar!

Time to put up or GTHO. I am so sick of seeing Max Amps, Jumpin' jesus on a pogostick don't you get it. We want REAL INFORMATION. If you can't do it as marketing manager then ask one of your people to nut up. Stop the "If you can't dazzle them with brilliance, baffle them with Bull####" I see this all the time with marketing/sales guys. The ones I respect are the ones that say "I don't know, but I know someone that I can get the answer for you".

That's all I have to say.

[_paralyzed_]

I forget where I saw the photo, but maxamps is literally run out of a garage. High quality.

To be good in business you need to be cut throat.(no morals) Maxamps are great at business, not so much batteries.

[JERRY2KONE]

You have to give it to Brandon for having the gonads to keep coming back in here posting his marketing for Maxamps after all of the bad press that they have been given in here. Even with a 20% off sale your offer falls way short of the norm in the industry now-a-days. The market has come to a point already where you can pick up fairly decent Lipo packs for $40-$100. I personally have not purchased any Maxamps packs since they first hit the market a few years back and failed within a few weeks. Of course back then you had to pay extra for any kind of warranty out of Maxamps so it was a huge investment loss on my part. Burn me once shame on you, burn me twice shame on me. Unless you can show that Maxamps has improved its reliability and its customer service and drop your prices by about 50% there is no way I would trust you enough to invest any of my hard earned money into anything you sell. Life is too short and money way too tight these days to bother trusting people you already know are not trustworthy.

I have a question about these LiFe cells that you are clearing out of stock? Why? Any time a company starts clearing out stock it is either making room for new technology, or because the product has out lived its usefulness in the industry and is about to become obsolete. So why all of a sudden are you clearing out LiFe packs???? Please no BS, just tell us why honestly. Plus if you were truly trying to clear out a product 20% off is hardly a deal. A clearance sale is at the very least 50% or better off of the advertised retail price. Otherwise you are just yanking our chain.

Secondly why after such a long time have you not bothered to back up your claims on the "TRUE 150C" packs with some level of support that shows that they can deliver on the advertised ratings? How can any company stay in business after making claims that are obviously bogus, and not even recant, or show proof to support the claims? I am baffled that you continue to ignor requests for you to show documentation providing evidence as to exactly what level of load these "TRUE 150C" packs can hold. How in the hell can you continue to show your face on any forum when everyone knows that you are hiding facts from the general public. How many buildings do we have to drop on your head before you get it? Put up or shut up.

[BrianG]

My thoughts on this thread:

1) I wonder how Mike would feel about MA advertising on here? I know he may have still have some MA packs in inventory (I'll have to check the storefront), but I am curious how he would feel about a company coming here telling people to get closeout items not available in his store. If he's OK with it, then I could care less, but it would be nice to get his input here.

2) I find it funny that any posting made by MA leads to so many responses in such a short amount of time, most of which simply reiterate what has been said so many times before. The more we respond to threads like this, the more they will happen. Personally, I think MA threads should be deleted as soon as they are made because it ALWAYS turns ugly in the end. Just a waste of server storage and bandwidth IMHO.

3) Why doesn't MA back up their claims? Well, the answer is glaringly simple; they don't have to. As long as people keep buying their products, they have no reason to justify their marketing. There are SOOOOO many MA threads on here and other forums that I think it's time we let the customers do what they will with their cash - after all, if they don't want to do research on the abundant materials available, they deserve what they get.

[JERRY2KONE]

Brian I agree with you to some extent. We keep asking and they keep ignoring our requests. Will this ever change? Only Maxamps can know for sure.

On the other hand the more we discuss this matter in here and on other forums the more people begin to question not only how good or bad Maxamps products are, but also exactly what their intent is and how dishonest this company has been. If we drop it, then people will begin to believe that Maxamps has overcome the issues and might be a good buy. From my point of view I just want one thing to happen. Either Maxamps steps up and creates a better image by doing the right thing, or they become so overwhelmed by all of this bad plublicity that they end up having to close up shop and stop ripping people off by dishonest advertising, and poor customer support. All of which is evident in these threads, because they refuse to advertise with facts rather than bloated specs and fancy labling sales tricks.

So yes we can just turn a blind eye to them and wish that they would disappear, but that is just not realistic. We are the heart of this hobby and if we do not demand better product quality and better customer service through warranty policies, then what happens to the hobby as a whole and the new guys trying to get started who are being fooled and ripped off by shameful marketing practices? I think we have a duty to our R/C friends and fellow hobbiests to keep the message moving until somthing changes for the better.

[josh9mille]

I happen to like the idea of closing Brandons account. He is the one that is using up bandwidth by lying and lying and lying. Forums are a very good way of spreading news (good or bad) and deleting threads that are bashing is exactly what MA wants. Why should we give them what they want? They sure are not giving their customers what they want! MA is going down, you can tell by looking at their nitrokillers forum, It used to be a semi-busy forum and now it is a ghost town over there.

[Finnster]

That was my thought too.

It would be one thing if the link was to a MA product in the RCM store, or at least a "RCMONSTER" coupon code to enter on the MA website so Mike can get some credit for the sale.

Maybe there is some arrangement, maybe Mike don't care, but it looks like an abuse of the priviledge Mike offers by running this forum in order to increase their own webtraffic w/o having to pay for any advertising. Not cool.

We already have restrictions on FS/FT threads. Is this even that much different than that even, or even conform to those standards? Maybe..
but then that should just get locked, and just avoid another one of those threads again. That way everyone is getting treated equally at least (if you didn't decide to draw a distinction between a business and private seller.)

Just my 0.02. G/L w/ whatever you all decide