[bruceme]

If I had a suggestion... it would be to make the battery casings dove-tail-interlock. I realize you need space for them to cool, but you could still have a groove for that. This would be a very cool assembly feature (all you need are simple straps to contain them from thermal expansion).

-Bruce

 

[dtbaker]

If I had a suggestion... it would be to make the battery casings dove-tail-interlock. I realize you need space for them to cool, but you could still have a groove for that. This would be a very cool assembly feature (all you need are simple straps to contain them from thermal expansion).

-Bruce

now THAT is a cool idea, and probably patentable if you jump on it quick enough. It would be a big help keeping the block lined up while strapping. In fact i'll go ya one better... if each battery case had molded in inserts allowing end-plates to be screwed on.... no need for straps at all!

 

[dtbaker]

.... to be assembled in a box originally designed for golf cart batteries.

exactly, what I would want is multiple fitting in the 'normal' 8v deep cycle space as the de facto golf cart size, but there also lots of people wanting to fit in the normal 6v deep cycle space too.


d

 

[JRP3]

now THAT is a cool idea, and probably patentable if you jump on it quick enough. It would be a big help keeping the block lined up while strapping. In fact i'll go ya one better... if each battery case had molded in inserts allowing end-plates to be screwed on.... no need for straps at all!

Doubt an interlocking groove is patentable. How would screwed on end plates compress a whole pack?

 

[dtbaker]

Doubt an interlocking groove is patentable. How would screwed on end plates compress a whole pack?

the groove no, but a groove on battery cells, yes!
anyway.... if the ends are 'stiffened' to resist the pressure of the whole pack, and the cells are locked together, it would be LIKE they were strapped.... but put a fair amount of pressure on the ends probably requiring molding in full width inserts.

hmmmmmm, perhaps molded inserts fastening one pack to the next would suffice as all the middle packs would expand against each other? lots o room for improvement here!

 

[hipowerkevin]

Terminals / holes:

new module type:
100AH 10mm
160AH 14mm
200AH 14mm
60 AH 6mm

former type:
100AH 8mm
50AH 6mm

 

[JRP3]

lots o room for improvement here!

If it adds cost and takes up space I'd say it's no improvement at all

 

[JRP3]

Terminals / holes:

new module type:
100AH 10mm
160AH 14mm
200AH 14mm
60 AH 6mm

former type:
100AH 8mm
50AH 6mm

Cell Weights?

 

[hipowerkevin]

Cell Weights?

No, It means here are hole on anode/ cathode, and the diameter of those holes.

 

[maxvtol]

No, It means here are hole on anode/ cathode, and the diameter of those holes.

He meant please tell us the cell weights.

 

[JRP3]

Exactly, if we are to calculate density we need the cell weights.

 

[david85]

Yes, the mass of each model of battery so we can estimate energy density.

For example, sky energy cells I think are close to 115wh/kg.

 

[dtbaker]

I for one, do not care so much about energy density, but DO care that handy multiples of three or four fit in the same space as the floodies I would be replacing.

 

[hipowerkevin]

Weight:
New mould:
200AH 7.0kg
160AH 5.7kg
100AH 3.8kg
60AH 2.1kg

former type:
100AH 3.95KG
50AH 1.85KG

 

[david85]

Weight:
New mould:
200AH 7.0kg
160AH 5.7kg
100AH 3.8kg
60AH 2.1kg

former type:
100AH 3.95KG
50AH 1.85KG

Excellent, thank you!

200Ah works out to 91 Wh/kg
160ah = 89.8
100ah = 84
60ah = 91.4

Old batteries:
100Ah = 81
50ah = 86.5

 

[dexion]

Kevin,

Any idea when you will have these warehoused in the usa? I need 48 more cells for a force I picked up with dead lead.

 

[hipowerkevin]

Kevin,

Any idea when you will have these warehoused in the usa? I need 48 more cells for a force I picked up with dead lead.

Do not worry, I would let all you know if we got it. at this time we are now preparing the new procedure line, which would be much more producing capacity than former. after that finished, we would got storage, and puts on US as warehouse. At this time we have lots of orders so it is hard for storage left, especially like 100AH

 

[pflipsen]

I'm looking to change over from Group 31 AGM lead-acid batteries to lithium and would prefer not to have to modify my battery frames. Your "new mould" of the 100 AH cells would appear to work well banded together in sets of 5 cells. Each "package" would be just slightly smaller than the Group 31 size and 9 such packages (45 cells) would give me a 144V pack.

Hello everyone!

Our company Hipower has updated some new modules.
There are new 100AH, 200AH, 160AH and 60AH sizes.
We also have former 100AH and 200AH sizes.

Here is the list of our most common lifepo4 battery capacity (AH) and sizes,
It is important that your suggestion would help us so that we can make the decision, can you tell which item you like most?

Following are AH and dimensions:

Terminals / holes:

new module type:
100AH 10mm
160AH 14mm
200AH 14mm
60 AH 6mm

former type:
100AH 8mm
50AH 6mm

Thanks very much for your help!

Best Regards!
Kevin from Hipower

 

[newbcake]

Are we talking about flat plate or cylindrical cell LFP? There's a big difference between the two.

 

[JRP3]

Since the post above yours lists height, width, and length, it should be obvious they are prismatic cells.