Current Draw / Battery Type for these (mostly Sofirn) lights?

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amishbill
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Current Draw / Battery Type for these (mostly Sofirn) lights?

A buddy and I have a mix of lights on the way, and I expect I’m going to need a bunch of batteries. The default for most everything seems to be 'get samsung 30Q'. Safe defaults are good, but I'd like to know a little more.

The challenge… I’m having difficulty finding details on the current draw and top type I need to cover on most of them. What I've found is listed below.

Can I get a reality check on what I have and ideas for the blank spots? The ones I have already (like the A6/S1 and SP31) seem perfectly happy with flat top cells, but some of these specify button top. Can I assume that you can use buttons anywhere flats work, or are some lights better with flat tops and some with buttons?

size type light Draw lumen

14500 ? sp10a ? 500
18650 ? sc31 2 560
18650 flat sp31 ? 1200
18650 ? sp32 ? 1000
18650 ? sp36 ? 6000
18650 ? Lt1 ? ?
18650 ? Q8 21 5000
18650 flat BLF A6 ? 1600
18650 flat Astrolux S1 ? 1600
21700 flat C8F ? 1500
26650 ? Sp33 5.8 2500

 

Edited by: amishbill on 06/12/2019 - 10:47
Lightbringer
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Buttontops add some resistance vs flattops, so I use FTs extensively unless the light needs BTs.

Anything with a spring on the driver side can take a FT, whereas anything with just a flat contact will need a BT.

 

Figure 1000lm is about 3A, so any decent cell that can handle that would work. A low-stress light like the SC31 would do better with a higher-capacity cell for longer runtime, vs a high-strung light that needs to be higher-drain at the expense of capacity.

So yeah, you can just get 30Qs all around, BTs for those that need ‘em (eg, the Q8), and FTs for the rest.

09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0

amishbill
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I saw a review of a lightly enhanced Q8 that pulled almost 21 amps. Rounding that up to 25 and dividing by 3, it looks like no less than 8 amp continuous per cell will feed the SP36 nicely.

Maybe three LG MJ1 18650 3500mAh 10A – Button Top Battery to gain a little runtime over the default Samsung 30Q 18650 3000mAh 15A – Button Top Battery?

(options based on what I have have tomorrow from 18650batterystore if I order in the very near future)