Model Boat Mayhem
Technical, Techniques, Hints, and Tips => Batteries & Chargers => Topic started by: Mark47 on January 27, 2010, 04:25:54 pm
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How do these battery packs compare?
http://cgi.ebay.co.uk/7-2V-6800mAh-NiMH-Rechargeable-Battery-RC-Kyosho-Tamiya_W0QQitemZ180380931639QQcmdZViewItemQQptZRadio_Control_Parts_Accessories?hash=item29ff8a9637
Price wise, there is no comparison.
http://www.component-shop.co.uk/html/body_6vp9000d-w.html
15 quid compared to forty three+ P&P
Looking for experiences. I'm on a budget like us all and would love to know, "should we pay 3-4 times here in the UK for all the wee bits that add up"?
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the component shop are 9000Mah and the others are 6800Mah... big difference
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I've been using Component shop battery packs for a few years now, no problems.
Their SLA ones are good too.
Service is excellent. If I order a.m I usually receive the goods the next day.
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the component shop are 9000Mah and the others are 6800Mah... big difference
This was just a comparison about price, not Mah. Equivalent Mah would still be £15 compared to £30-35
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I've been using Component shop battery packs for a few years now, no problems.
Their SLA ones are good too.
Service is excellent. If I order a.m I usually receive the goods the next day.
These are the packs I've been using DickD.
But is this a better/cheaper solution?
(the service is excellent and exemplary from the component shop) But are there cheaper/as good competitors?
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These are the packs I've been using DickD.
But is this a better/cheaper solution?
(the service is excellent and exemplary from the component shop) But are there cheaper/as good competitors?
Haven't found anyone better Mark.
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You are comparing apples and eggs. The E-Bay ones are Sub-C size while the Component Shop are D-size. This gives me a few doubts as to the real capacity of the E-Bay ones. Component Shop's highest capacity Sub-C pack is 4600mAH and as far as I know there aren't any higher-capacity cells of this size generally available (yet?). A sudden 50% increase in capacity would be a helluva leap in the technology - unprecedented, in fact.
As far as buying stuff on E-Bay from Far East suppliers, mmmmmmmmmmmm..... We've been told by several Chinese manufacturers that they'll print any old thing on a label to order (yep - CE symbols - the lot!). Funny then - if it's that easy then why can't I see either Tamiya or Kyosho on these cells anywhere - just in the tagline for the sales pitch? I can see a figure which I don't trust.
Ever heard of the "Super Power Battery Co Ltd"? Me neither. Wanna risk it? Go ahead; it's your money (not mine).
Makes you wonder though, dunnit? %)
FLJ
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I saw a report the other day to the effect that high capacity NiMH cells are more "fragile" than lower capacity cells and more prone to damage from high recharge rates.
Anyone else know about this?
Colin
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Ever heard of the "Super Power Battery Co Ltd"? Me neither. Wanna risk it? Go ahead; it's your money (not mine).
FLJ
Same place Peckham spring water comes from Dave
Mark
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You are comparing apples and eggs. The E-Bay ones are Sub-C size while the Component Shop are D-size. This gives me a few doubts as to the real capacity of the E-Bay ones. Component Shop's highest capacity Sub-C pack is 4600mAH and as far as I know there aren't any higher-capacity cells of this size generally available (yet?). A sudden 50% increase in capacity would be a helluva leap in the technology - unprecedented, in fact.
As far as buying stuff on E-Bay from Far East suppliers, mmmmmmmmmmmm..... We've been told by several Chinese manufacturers that they'll print any old thing on a label to order (yep - CE symbols - the lot!). Funny then - if it's that easy then why can't I see either Tamiya or Kyosho on these cells anywhere - just in the tagline for the sales pitch? I can see a figure which I don't trust.
Ever heard of the "Super Power Battery Co Ltd"? Me neither. Wanna risk it? Go ahead; it's your money (not mine).
Makes you wonder though, dunnit? %)
FLJ
if the ebay cells are sub C why are they the same Diameter as D cells 45mm and not 24mm ??? I wonder where all the cells are made these days OH I know China ;D
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Peter
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if the ebay cells are sub C why are they the same Diameter as D cells 45mm and not 24mm ??? bet they burn out in ten minutes as well
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Peter
Look again, Peter. Two sticks of three side-by-side is 24mm "thick" x 45mm "wide" x 130mm long. That's a Sub-C buggy-pack. As for them burning out in 10 minutes, I wouldn't be totally amazed if that happened. Caveat emptor again?
FLJ
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ok
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I saw a report the other day to the effect that high capacity NiMH cells are more "fragile" than lower capacity cells and more prone to damage from high recharge rates.
Its a fact except for the special buggy sub C type packs, I ruined a set of 2400 mAH AA's charging at a 1 c rate.
Nick
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Thanks for the info all. :-))
I just wondered if it was worth while getting some @ the end of the day I can get three for the price of one. With the info given I won't waste my time. O0
Thanks,
Mark