educate me on batteries - 21700 Flashlights - BudgetLightForum.com

You could have taken either cell they offered with this light - both are fine. The mAh is a Lishen LSSA and the mAh is a Lishen LRSD battery. Both batteries perform quite similar up to 10A current. The little extra money for the mAh battery will result in a little bit more runtime. Be careful with the SP35, though. This flashlight has no thermal regulation (yet), i.e. it will not step down its brightness on turbo but gets really really hot (> 80°C). Step down manually once the lights gets too warm in your hands.

Please visit our website for more information on this topic.

The best brands are the big names: LG, Panasonic, Samsung, Sony/Murata, Molicel. I’ve not tried any of the Vapcell ones from aliexpress but people say they’re decent.

For high capacity, relatively low discharge rate batteries I have some Molicel M50A. For maximum discharge rate I have Molicel P42A.

Lastly, the chemistry of the battery can make them slightly safer. Someone correct me if I’m wrong but from what I remember the INR chemistry is the safest (though slightly lower performance).

The C and V buttons may be for charging at constant current/constant voltage? I’m not so sure about this though

If the charger supports and you can fit a in there it will charge it just fine

good question

JOINSUN Product Page

the site says:

https://sofirnlight.com/sofirn-sp35-max--lumen-no-stepdown-version-with-buck-driver-works-with-your-typec-charger-p.html

“Low voltage protection: yes”

“using one Protected ”

so, by my reading, they claim LVP, but they also say they use a Protected LiIon

so if It was me, I would use Protected LiIon

unless someone knows for a fact (and can provide a link confirming) that the driver (not the battery) has built in LVP

The company is the world’s best What Is a Battery supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.

Hey guys,
Since I know nothing about these Wart Hog batteries, or the building of a battery pack,
I have to ask some questions?

Below is the OEM spec's for 1 battery, (have dual battery's),
Capacity 48V 15 Ah 720 WH
LG Chem Cells

How can you figure out the total number of battery's?,
How many are mounted in Parralle and series?
Can this type of battery be improved in AH?
A battery has these dimensions 21mm (dia) x 70mm (Long).

Reason for these questions,
I want to have a good back up battery with the most possible AH,
to go along with the 2 dual batteries I have now.
I have a OEM battery case, that has been gutted, and will get this battery case
rebuilt with the battery's.
It's inside dimensions are 15" long x 2.870" wide, with a 3 angled roof 2.670" high.

I would appreciate your help,
Your thoughts and suggestions,
Tia,
Don 48v would be 13 in series.
My newest pack is a definite improvement over cells. 15Ah is kinda low Ah for a pack. Figuring the number of cells won’t confirm what the builder actually used. So many sellers over estimate capacity. Liars really.

Chances are the case won’t hold additional cells. Can you ID the case? Cases are cheap. Rebuilds can often cost as much or more than a new battery.

ID the case to move forward. Tom
Thank you for the information,
I ask Bikonit, about the number battery's and they stated this info,
The battery has 39 cells and 13 in series 3 in parallel, with LG Chem battery's.

I have been drawing up a diagram using the inside dimensions of the case,
and depending on which direction the cells lay, the best swag I can come up with is 35 total battery's.

I have spent hours looking for the brand name/make of this case and have found
no information on it, I know the info is out there I just can't find it so far.
The only item I did find, is this battery case does have the Hailong 4 prong connector's, 2 colored lite, push button switch and uses a 3 pin female port..

There can't be much room inside the case with all the other required items needed.

Thank you,
Don Tom
As a follow up,
I have several days of looking for a empty battery case, with NO success,
the closest I came was this battery that had the correct end, (on the lock end),
but has a 5 prong Hailong battery connection and is only 36V.

I need a 4 prong and 48v,
battery overall case length is 17.375" long, 2.840" tall, 3.330" wide,
there is a step down that is 3.040" wide on the narrow side,1.190" tall, on the bottom step down section.
Useable inside space length is 15.125" long.
I have a female 3 pin charger connection at the Hailong end and a push button battery scale at the other end, has several colors, (but I can only see the Blue color).
This battery is shaped like this Apache battery case.

The OEM information printed on the battery bottom is as follows:
WDDLLSL48V15AH/720Wh Serial number = L.

FTH put this sticker information on this battery, when they attempted to repair it,
Model# WDDLLSL48V15AH
-CSM-
L.
I wonder where Bikonit get their battery's from?

Tia,
Don Thanks Tom
I'll search those sites.

I plan on using my empty battery and want another one,
so I have a total of 4 batteries, for my Bikonit Wart Hog MD750 bike etc.
I was hoping that I could have the 2 new battery's built with more Ah's for better range, than the OEM ones have now etc.

I am averaging approximately 100 to 110 miles per a recharge, from 54.3v down to 43.3v discharge range, I only recharge my batteries when the reach this discharge range and I can feel the lagging, in the eco1 step, I normally use and ride in 99% of the time etc.

I don't know anything about battery's and building them,
This battery has 39 cells and 13 in series, 3 in parallel, using LG Chem battery's,
is the only information I have from Bikonit.
Thank you,
Don

I don't know anything about battery's and building them,

Well, it's an expensive proposition. And not something to get into without a great amount of care and thought.
A decent welder will run $250 or more. Lots of cheap stuff but they are not what so many YouTubers claim they are in terms of reliability AND safety.
Highly recommended, but you must add a power source. LiPo is risky. Lead acid batteries are expensive.

I have a pacemaker making it very dangerous for me, so, I stopped.
How will you deal with finding a BMS?

Weird, their website sends owners to FTH! WTF?

kWeld – complete kit | keenlab

kicksurfer.de | Innovative motion-sensing electric scooters. Thanks Tom
I am NOT going to build these battery's, (Way over my pay grade, and I KNOW my limitations),
I'll pay a battery builder to build these battery's,
and I am hoping that they will be better and have more Ah's that OEM.
The OEM cost for me are over $700+ per battery, not including shipping.

As for what's inside these batteries, this info is what I have found from Bikonit,
Auto Balance Function, Auto Battery Maintenance, in these battery's.
What else is needed or inside these battery's is unknown to me........

Tia,
Don

Thanks Tom
I am NOT going to build these battery's, (Way over my pay grade, and I KNOW my limitations),
I'll pay a battery builder to build these battery's,
and I am hoping that they will be better and have more Ah's that OEM.
The OEM cost for me are over $700+ per battery, not including shipping.

As for what's inside these batteries, this info is what I have found from Bikonit,
Auto Balance Function, Auto Battery Maintenance, in these battery's.
What else is needed or inside these battery's is unknown to me........

Tia,
Don

Thanks for clarifying. A good builder will not likely save much. There is no communication system? A third wire from the battery? Tom
Just an update,
Maybe, I found a battery case that fits the WH,
this case has all the spec's/dimensions (that fit my battery case),
found on your second site listed,
except the items in bold, don't match.

Model number: SSE-118
Max cell space: 50*2 pcs / 40*2 pcs
Configration: 10S5P / 10S4P
Material: Aluminun / PC+ABS
Charging port: Dual-DC2.1 port =?
Discharging port: Self-made 6pin= ?
Lock: Mechanical spring lock+Safety lock
Capacity indicator: Single LED indication(3 colours)

The only items that don't match, is the configuration of the batteries,
I have the configuration for battery,
has 39 cells and 13 in series 3 in parallel, with LG Chem battery's.
Not the same, as above, and not sure about the Charge/Discharge port info.
Still checking more info.

Thanks,
Don