Chinese NiMH cells

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bob mcree - 18 Jan 2006 23:24 GMT

Does anyone have experience using 9 Ah NiMH D cells at high current
(32A)? The Chinese cells are about $6 and the SAFT cells made in France
are about $15 so for my ebike pack it's $932 for the SAFT cells vs. 332
for the Chinese cells. I'm wondering if the SAFT cells are really that
much better.

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nospam@noway.com - 19 Jan 2006 00:06 GMT

> Does anyone have experience using 9 Ah NiMH D cells at high current (32A)?
> The Chinese cells are about $6 and the SAFT cells made in France are about
> $15 so for my ebike pack it's $932 for the SAFT cells vs. 332 for the
> Chinese cells. I'm wondering if the SAFT cells are really that much
> better.

I have no experience with the cells you are referring to, but have you
checked the discharge rate of both cells comparatively? Generally the
Chineese cells will have a low discharge rate (usually 5-10A) whereas the
pricier cells will be rated to 30A or so.

Have you checked www.onlybatterypacks.com ? I ordered a few hump packs and
stick packs from this fella and they've performed wonderfully so far. Cool
thing is he has the discharge rates listed for every cell he sells.

Doc

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bob mcree - 19 Jan 2006 01:08 GMT

"Doc" wrote:

> I have no experience with the cells you are referring to, but have you
> checked the discharge rate of both cells comparatively? Generally the
> Chineese cells will have a low discharge rate (usually 5-10A) whereas the
> pricier cells will be rated to 30A or so.

Thanks, i have definitely checked the specs or i wouldn't be considering
them. Tenergy (all-battery.com)sells a D cell rated at 40A and
Powerizerizer (batteryspace.com) has one rated 50A sustained /90A peak.
The expensive SAFT cells are also rated at 50A. I think the difference,
if there is a big one, will be in number of cycles delivered...

> Have you checked www.onlybatterypacks.com ?

the link didn't work. might it be misspelled?

-bob

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DanTXD - 19 Jan 2006 02:19 GMT

> "Doc" wrote:
>>
[quoted text clipped - 12 lines]
>
> the link didn't work. might it be misspelled?

Works for me?

Signature

Dan

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nospam@noway.com - 19 Jan 2006 03:47 GMT

>> "Doc" wrote:
>>>
[quoted text clipped - 14 lines]
>
> Works for me?

Me too, I just double checked.

Doc

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bob mcree - 19 Jan 2006 04:26 GMT

"Doc" wrote:

> Me too, I just double checked.

works now for me too now, must've been a temporary server error. these
guys have a Chinese 9.5 Ah D cell for $13.99 compared to half that for
the Tenergy or Powerizer cells. I didn't bother to email them for the
max discharge rate data; it's not on their webpage.

for the same price they charge i can get the French SAFT cell, which is
the ultimate in NiMH cells. These guys prices are WAY WAY too high!!!!!

-bob

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Model Forum / Radio Controlled / Land Models / January 2006

Chinese NiMH cells