[sabahtom]

I've got China HP 100AH cells. 3.3kg each. I'd like to stack them 4 high, lying horizontal. So 10kg resting on the bottom cell. Is it strong enough?

Cheers

[dougingraham]

Originally Posted by sabahtom

I've got China HP 100AH cells. 3.3kg each. I'd like to stack them 4 high, lying horizontal. So 10kg resting on the bottom cell. Is it strong enough?

I can't say I am familiar with that brand, but all the other prismatic cell brands (Thunder Sky, Sky Energy, CALB, GBS, Hi Power) would have no problems with stacking like that.

[sabahtom]

Thanks Doug, they are China Hi Power.

[Ziggythewiz]

While they can probably take the weight easy, at least CALB recommends you only orient them vertically. 4 stacked sounds like it would be close to the same size as vertical anyway, what makes them not fit that way?

[sabahtom]

While they can probably take the weight easy, at least CALB recommends you only orient them vertically. 4 stacked sounds like it would be close to the same size as vertical anyway, what makes them not fit that way?

Thanks Ziggy. Hipower says they can lie any way except upside down, but I haven't seen anyone with a DIY conversion doing anything but vertical. Maybe I haven't looked enough, or nobody believes Hipower?

4x51mm = 204mm stacked height. Cell dimensions are 163 x 51 x 273.

Per the attached drawing I have 215mm from the floor sheeting to the lowest part of the bodywork. If I go lower than that and I make a rectangular box I'm going to lose a lot of clearance and the van won't look stock anymore.

I'd like to attach the box from underneath and not cut the floor. The battery boxes run directly underneath where the seats bolt into the floor.

Cheers
Thomas

[Ziggythewiz]

If manufacturer says it's fine, go for it. Do they recommend any compression? If they do, and specify an amount you could use that as a minimum weight they can handle. I think the force most people strap with is much more than the weight of a few cells.