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PLAZMA 4700mAh Battries

Posted: Wed Jan 06, 2016 7:54 pm
by DRC
!. They cost £31.00.
2. They don't fit the battery compartment of Heng Long tanks!
3. You can't re-solder the wires back on.
4. THEY BREAK VERY EASILY!

Just my observations, I feel much better now. @)

Re: PLAZMA 4700mAh Battries

Posted: Wed Jan 06, 2016 9:23 pm
by jarndice
Thanks for the heads up. :thumbup:
With Heng Long now using LI-POs and similar types of battery as a standard fitting, confusion is bound to set in.
shaun

Re: PLAZMA 4700mAh Battries

Posted: Wed Jan 06, 2016 10:37 pm
by Max-U52
I'm slowly making the switch to lipo. All my hobby grade tanks are on lipo now. I just couldn't justify spending $50 for a 5000 mah nimh battery when I can get a 5000 mah lipo for about $12 (on sale, of course, about $16 regular price). And the 2200 mah lipos will fit in any battery box and will run a tank for about a half hour or more.

Re: PLAZMA 4700mAh Battries

Posted: Thu Jan 07, 2016 9:38 am
by ninelong
Yeah, they don't fit. I had to cut off one side of the compartment to make it fit lol. Why do you say that the wires can't be resoldered? I changed the connector on mine just fine. More importantly, how'd yours break? I'm a bit concerned now since it's my only battery at the moment. 8O

Re: PLAZMA 4700mAh Battries

Posted: Thu Jan 07, 2016 10:19 am
by Tankbear
Silicon wire specially large gauge can be difficult to solder if you soldering iron can't deliver enough heat, otherwise the wire just conducts heat away.

Re: PLAZMA 4700mAh Battries

Posted: Sat Jan 09, 2016 9:35 am
by DRC
Okay, what kind of soldering iron am I using? It's a Weller Expert Type 8100UD 240V 50Hz 100VA Licht 5V_0.2A AB20% ED sd1MIN T2SE. or as I like to refer to it - That big red gun like thing.

I bought the battery new a week or so ago and put it straight onto an intelligent charger, I had been told that with a new battery I should use the lowest and slowest setting at the start and that this would prolong its life, after a few charges I could then use the faster settings. The charger stops when it's done its job so I left it to do its work and returned a day later when I saw that the green light as on.

I tried the battery out of the tank but there wasn't even a glimmer of light from the LED headlights, I don't know why I thought that inserting it fully into the tank was going to make things better but I tried...... This is the second large capacity battery that I've tried to fit into Heng Long tanks, I managed to get the first to fit by removing both end caps and covering the terminals with electrician's tape. I tried the same trick and then noticed some movement inside the shrink wrap cover. I carefully removed this with a Stanley knife and saw that each cell was only just soldered to the next and could be pulled apart using no force whatsoever.

I ended up with a pile of shrink wrap and six individual cells! No matter how I tried I could no re-solder them back together. Now I could try and take the remains back to the shop but I doubt they'd have any sympathy when they viewed the mess. But, help is at hand. I used to work very closely with a department we called the TSU (Technical Support Unit) they can only be described as technical wizards when it comes to small electronic things. I happened to bump into one yesterday and after the usual Happy New Year and how are you doing greetings I asked him about the battery. He offered to have a look at it, he also said that they had some new cells in that would be much better....

So happy days! I'm still toying with cutting the end of the battery compartment out and extending it to accomidate larger power packs - has anyone done this already?

DC