WrineX

Hi there ! hope you all do well ?

Here is my first Prototype of the 4 BAY NP50/LBP61 discharger. small video. hope you like it, and if you got any ideas, let me know !
VIDEO here, seems i cant post video media ? or cant find it anymore
https://youtu.be/pzX3vyLBoEM

Kind regards Joppe Peelen

Hi everyone!

Jeeej got my first PCB's in for the Battery discharger! and ofcourse i made mistakes in the PCB design... i really hoped it would be perfect in one go.......(do i order 5 or order 10 for 1/3 more of the price......you know what i chose) The mistakes are not so much in the way it should work, just really dumb mistakes haha i chose the wrong mosfet... (dumbest mistake ever, almost the same one ) and i forgot a spot to ground... (could bodge that for now pretty easy thankfully) the mosfets i replaced in my prototype for the correct ones.. and there are some small things layout wise i want to see differently out of convenience. The PCB's have a clear spot where a microcontroller will be fitted to control all of it. and if the pcb is ok, i can change most settings by softtware update.

Now i am playing around with where to put the screen and Switch or capacity switch. and some testing. seems to be 2-4% accurate between the 4 channels. doable.

I will make a 4 channel Np50 version to begin with, and i am still looking for at least 1 person (preferred in Europe) that would like to test drive the prototype when it is working properly, i would love any input software based or arrangement wise, some things i cant change some things i can. and want to make it as good as i can within the boundaries of what i can make.

Kind regards Joppe Peelen

On 8/29/2026 at 10:45 PM, Matthias Richter said:

Hi Joppe,

 

this is a really good idea! Right now it’s realizing while shooting that some batteries last longer than others. 
It’s not something I will use every other day - so I hope it won’t be too expensive 😉

Thank you ! yeah it is indeed something you would use maybe once or twice a year and test all your batteries.  if it will be cheap ?....im afraid not super cheap. then again it might save having one cut out in the middle of a shot. or having to replace a battery one more time then you would like during the day.  price i am shooting for will be a cheaper then my chargers. , but i cant sell for Chinese prices i am afraid.  its also a good way to find the perfect battery capacity vs price. since i noticed some batteries are really insanely priced. 
 

Small update on my discharger, for those that are interested, and maybe if you got any ideas let me know !

Well i am still in super prototype stage.... wires everywhere software not even near perfect. and still have a headache about how to put it all in a housing, while using as much parts i already make for my chargers. (if i can use parts i make anyways would be nice) so i decided to make it a 4 Bay discharger using the same layout as my chargers. so i can use the parts that will seat the batteries. the rest i would have to make custom.. but some is better then none

It will be running on USB C (not the red high powered ones that can give 60 watts etc, i had one of those chargers and it does not work but pc/laptop and regular cheaper usb c chargers work fine. 500 mA like a regular USB1 port is enough to run it.

It will (already does, but only 1 slot for prototyping) Discharge a battery with a load that represents the load the transmitter will do, this to get a better idea of what the useable capacity of the battery in question is.  MTP61 and the NP50 are close so they use the same current around 130-140mA (the transmitter that use them ), the BX used in the sounddevices need a higher current to get a more reliable reading (a heavier load will let the voltage dip more, and cut of earlier)

The discharge will be a constant current load, just like the transmitter will be drawing a constant current if it wants to maintain its set mW of RF.  it then counts the current drawn over time until the cuttoff voltage is reached and it will show the final mAh capacity extracted from the battery.  i tested the accuracy and its around 99% accurate so far !

it will have a storage setting beside the capacity test. so it will drain batteries down to 3.55 volt (with a set drain current of 200mAh, faster then the capacity test) and then bounce back to the ideal 3.7-3.8 volt storage voltage.

Here a video of really..... prototype stage (although functional, but all in pieces) here a test with a capacity type of switch. placement would be somewhere else  (the hole in the front panel is where i wanted to see how the screen would look on this side, for now the screen is on top as you can see, but i put the switch where the screen was because the plastic is thin there (so it reacts like i want) it will be relocated to another place... just testing the switch and the timer so you do not screw up you 7 hour discharge session by accident.

Video Capacity switch

Im sure i will shuffle parts around to whatever place seems practical. one thing the screen on top is not practical  costed me a week to try with different methods and well making it look nice...  is not possible  wished i could....

anyhow let me know if you have a good idea to implement maybe i can take a look at it? 

Kind regards Joppe Peelen

Hi there! hope you all do well, been a while.

I am working on a battery discharger... long due...
I made a version yeaaaars ago before i made my chargers, but times changed. so time for a new version.

So my idea is to get the discharge voltage as low as what a transmitter uses give or take 130mA for Lectro Zaxcom and Wisycom, and the one that needs a seperate setting the Sound deviced A20... since they hog power...
For this new version i will be using a constant current , by doing so the capacity the battery is showing comes closer to what you can expect on a transmitter in real life give or take. its slow but draining the batteries fast wont give a good result because loading the battery will drop the voltage and might cut off discharging pre mature.
it will be a 4 Bay discharger by the way.

They will have a small Oled screen that display the capacity and if i can, i implement a storage feature, so they can be drained to a voltage that keeps you batteries last longer while not been used. without degrading , the housing will have the same form factor as my chargers, because i like that.. and well i want to make as less new parts as i can
Do you guys have any ideas of things that you would like ? maybe (if the hardware lets me) i can add a feature.
Here a tiny photo of a premature test of the code and some hardware on a breadboard want to know if it works before i make some nice printed circuit boards. Testing the storage setting here. (dont mind the cluttered work place... thats me) and it will get a larger OLED display to see all batteries current capacity at once. instead of 2

have a nice weekend,

Greetings Joppe
 

On 8/26/2024 at 11:20 PM, docsound said:

Looks great! Can it be powered with USB-C ?

Can you do also a charger for Wisycom MPRLBP / Klic-8000 / CS-WMR500SL ? 

the use a regular DC barrel plug , but with a wide range of voltage input. they take 12-30 volt so they can be used on a cart battery etc

On 10/16/2023 at 5:27 AM, resoNate3973 said:

beautiful! how are the batteries lasting?? 

i cant say, im using cheap ones for basic testing. i test every charger before it ships out.  i do not overcharge them so they should last pretty long !

Hi there, it has been a while ! hope you guys do well?

I had this question been ask multiple times now when implementing my chargers into a charge case..  CAN I GET RID OF ALL THOSE POWER BRICKS!!!

and well the answer is yes for me ! my chargers can hande around 12-30 volt witch makes it more easy to mate with other chargers powered by one power supply , as well as it can use 24 volt and halve the current requirements for cables and or plugs..... BUT

one has many more chargers in the case and they are often not able to do so. So i wondered... maybe i could make a product that can convert from 24Volt to a few set voltages , so we can use a big power brick or somthing else instead of multiple bricks. 

now my question is , what do you have in your charging cases ?  (i am not been on a set for years so). name and number please so i can lookup there requirements. i noticed many have a AA charger thats are fed 5 volt, some have things running on 12 volt.. and my chargers run from 12-30 volt.  
i would love to know what voltages used mostly and how much they draw, and or how many are used..  so a list of what you have in your charge case would be nice and i do the rest
I hope you can help me out !


Kind regards Joppe Peelen

Well i got my first charger ready for testing.

I changed up the looks this time since i want to be able to make the NP50 and BX1 versions with the same footprint and some of the components.  (so i dont have to keep materials for 3 chargers on stock)
needs some charge cycles and loading unloading tests

it charges 8 batteries at once all at 400mAh so a  1000mAH batteries should be done in around 3 hours +-

 

Well many shipped by now but i thought i make a post anyway. since i forgot. 

Picture is of Scott Farr's charging case. i dont have the fancy product photos i made with the Np50 yet.



Technical specification
 

• Charges 8 BX1's Simultaneous.

• Over sized Converter that can supply up to 2.5 times the current required, to run cool and increase reliability.

• Matched Charging chips within 1% accuracy. (all pcb's are tested manually). 4.16-4.24 volt with a bias towards the lower end to achieve longer battery life.

• Swiss made gold plated spring loaded battery contacts.

• External power supply from a well known brand (Meanwell)

• Passive cooling.

• Ability to be fed by a DC power source between 12-48 volts DC (Cart battery or your Car, or a laptop brick)

   

Power supply specifications

Charger specification 

more info and manual can be found here :  https://wrinex.com/product/wx-bx1-8/

or you could ask me of course

Small update,   i send out 2 BX1 chargers one has been used allot and works fine, the second has not been used much yet. so i hope to get some info about how it works out. The small fingers that clamp the battery (different then my NP50 chargers) are still being made by hand, not ideal and takes just a bit more fidling around. i hope i can think of a nicer way of bending those fingers. besides that they work.

Will be making a dozen soon !

Thank you sir  glad you like them !

On 7/27/2017 at 3:26 PM, Gene Martin said:

 We did do a custom run of some 10 bank charges. We do have 4&8 bank charges in the works but unfortunately have had a delay in our molded parts. 

 We do currently have a USB powered 2-bank charger available.  This does charge the batteries simultaneously.  We've had a couple clients use these and a USB charging hub to make multi chargers.

 

i know this is an old post, but i stumbled oppon.. but what molds    the plastic parts  ? 

Hi there i hope all is fine ?

First prototype of the 8 bay NP-BX1 used by Sound Devices in there A20 Mini.
It still needs testing ! But at least we are closing in.

This is how it looks. if you would like to place an pre order/be on my list or want to know more please mail me @ info@wrinex.com 
 

That sounds good ! 125 shooting days sounds good to ! 

Hi there since my tiny company exists 1 year i thought its a good time to celebrate that with you guys that made it all possible !!! lets post it here first!

Since material prices went up a lot, i had to increase the selling prices a month ago by 25 euro , but i made sure for the celebration you still have a small discount even compared with the old prices. 

The NP 508 8 bay charger will sell with a 10% discount and will set you back 337.50 euro Ex VAT ex shipping compared to the current price of 375 Euro + a free pig tale to be used on a cart battery.
The NP 5016 16 bay charger will sell for 607.50 ex VAT ex shipping compared to 675 + a free pig tale to be used on a cart battery.

For more info about the chargers you can check out  www.wrinex.com or contact me by mail facebook or the message system over here.
A charger can be ordered by mail info@wrinex.com or check out my website.


Thank you all for your interest and support, over the year !  it was a great one !!!




 

Been a while, due to vacation and having to clear a house out. not much had happened from my end as well in terms of orders. but i do not take vacation so if someone still is interested in a charger feel free to contact me here or on wrinex.com

have a good one and enjoy the weather, i know i do

Since the waiting list is almost gone, i had some time to make a request for a 16 bay version (several  people asked for one, but i could not make one since there where so many pre orders).  i still recommend 2 x 8 bay because of redundancy , but if you got many to charge, or want to have as small of a kit possible. this is it. 16 bays charging in one go. same specs as the smaller 8 bay in terms of speed. it does use a slightly more powerful power brick of course.  that can also be used on the smaller one if needed.  Both can be used on a cart battery as well if it is able to supply 20 watts for the 8 bay and 40 watts for the 16 bay charger.
DC voltage range for the 16 bay = 12-24volt 40 watts

Price is 650 Euro ex VAT ex shipping compared to 350 for the 8 bay. both can be ordered by contacting me
More specs about the 8 bay can be found on  www.wrinex.com (webshop part not yet up) 

It has been quite the year !!

And i have to thank you all for putting trust in me and my product.
And i hope everyone that owns one enjoy using them (sorry about the disco in every hotel room)
For the people that are still on the waiting list, my list is almost gone and i bought allot of stock for parts, so i should be able to deliver faster.

i send everyone an email to wish you all happy holidays, but some might not be in my current list. 
So thank you once more to make this possible and enjoy the holidays!

Kind regards Joppe Peelen

On 10/25/2021 at 12:23 AM, Moonscape said:

I should re-organise my charging case now that there is more room - thanks to the small footprint of Joppes charger...

 

haha it is dwarfed by your huge case haha

On 10/20/2021 at 9:01 PM, Shastapete said:

Found the time to get Joppe's charger into my charge case. Looks right at home, perfect fit!

 

Nice one thank you for the picture !
Also nice USB leads, for timecode devices ?
i hope you will enjoy the charger, if you got any questions feel free to ask.

Kind regards Joppe Peelen

On 9/22/2021 at 10:07 PM, Dejan Ceko said:

Got mine week ago...charming little device , regularly (ab)used on set.

Dimmer would be nice addition, so it can be used on a dark set's . 

Cheers WrineX.

 

THank you for the feedback it is very helpful!!
I understand the problem completely on a dark set or hotel room    you can trow something over it. wont hurt the cooling all that much. but i agree a dimmer would be nice. it looks like a disco in your room

Only problem is that it is not that simple to achieve, but i will put it on my list of things i would love to improve, got some ideas but it takes time to see if that actually works.  (especially i need to make new circuit boards) and an extra  knob of some sort  i could adjust the intensity but i was afraid it would not be intense enough for daylight   

Thank you for the pictures and if you got any questions or things you noticed feel free to send me a message !

Kind regards Joppe Peelen

 

 

On 9/23/2021 at 8:33 AM, Moonscape said:

I received my charger a few days ago, it's tiny! I was able to swap out two two-bay chargers and reclaim a heap of realestate in my charging case with this beauty. I'll try an upload more photo's with the charger installed. I'm very happy, Thanks Joppe! 

Thank you ! i am glad you like it!  it still is weird to see a thing you made on the other side of the world in use    if you got any issues or questions feel free to email me call me or send a message !

6 hours ago, axel said:

Thanks Joppe for this nice little 8-bay NP-50 chargers.  I was surprised they work on 12V as well, so I'll put one on my cart.

Perfect  !!! yeah it has a very wide range of working voltage.  12-36 so almost everything works  looks great !

Send out the first 4 chargers today   jees allot of paper work  since my site is not up yet.  i have to make all invoices manually. 

but happy camper anyways.  feeling anxious about what they think of them and hope nothing goes wrong in shipping  ,  even after i made a few in the past. 

time for a beer ! to celebrate

for those that wonder, at the moment i only accept money transfer or paypal.  this will change when the website is up and running

2 hours ago, DanieldH said:

Hey Joppe, thank you for the update! This is all good to hear. 

I am neither within the first 8, nor in a rush. 

Put me on the end, if that helps.

How would you estimate this gold price Swiss contacts situation influencing the total price?

If it is at all appropriate in this production stage to ask: Would it be possible to place the power inlet and switch on the top or bottom side of the unit?

If not, could it be done by a skilled solderer and enclosure driller post shipment?

This would make it somehow more space friendly in an upright or case operation. 

thanks m8 , ill take a look where you at and move you down a bit , i probably leave you on the spot you are  when i am able to ship ill, ask if you need it or not in a hurry

The pins gone be fine, its well not great but. overall it wont influence it that much. so ill just take it. and keep the price as promised. 


about moving the power inlet and switch is sort of a problem.  the way the thing is made i cant drill holes in the top or bottom.  maybe but i say maybe. i can think of somethign with an insert.
since the backside that houses the inverter can be decoupled from the front charging bays, i might be able to make (if it works)  2 different backsides.,   but i cant prommise anything. and at the moment im a bit to bussy to look into it. but ill keep it in the back of my mind ! ur not the first one asking for such a thing.

Kind regards Joppe


 

Small update of my chargers. not an add!! i just wanted to inform people.

I am making as much components as i can (with the money and time i have). so i can hopefully reduce building times when i actually can ship them.

I am waiting for my mega order (for me at least) of the swiss battery contacts, gold price sky rocketed and people seemed to horde the exact pogo pins i needed  and drove the price up almost tripled. Anyhow i placed my order of 1000 pins that should be enough for all of the pre orders...

The other components i buy as i go, the most expensive components i got for a small batch of 8 chargers (these components have a fast delivery, so i can order them along the way) everything that takes longer i ordered in advance.

3 august i can get my company VAT number, it was the fastest method i could chose apparently they are busy. 

The product photos became really nice i think , and i even like the simplicity of the website and design (not online yet). biggest problem is the payment options and shipping labels and correct invoices i can only fix after my VAT number is arranged.

So worst case scenario is i have to make some invoices by hand etc to ship some. since i dont know how fast fixing these website things take. and i want to get them out as fast as i can.

I still need to ask everyone on the list how much they are in a hurry, but i think this is hard to do when the website itself is not up yet. so i will ask the first 8, and might swap some people around if they agree on it.

last but not least, i am verry happy i took the plunge and am stoked to actually ship out some when i can!

Kind regards,
Joppe Peelen
 

NP-50 Bulk Chargers Small update !!

Well i took the plunge jeeej ! i reached my goal of 45+ chargers !! 

Thanks all of you for the support , the people that want to take the plunge as well as the people that already had taken it in the past  and where insanely friendly to pitch them without asking !!! i am glad the people that have one,  enjoy them to !! 

I got rid of my income yesterday so i can make and sell chargers bit scary though.

anyhow, Its only legal for me to actually sell them from the beginning of august +-, but i do whatever i can money wise and time wise to make as much parts as i can before that.  (photo)

when i got a few ready i will go trough the list and see who wants one straight away and who is okay with waiting slightly longer. to try and keep everyone happy and get there chargers as fast as i possibly can.  please do keep remember that i still make them all by hand.  and even make 90% of all the parts. 

i hope by the end of the month i got a website, that i first use as a payment portal only to give you guys the ability to have several payment options and so i can aquire an address that cant go wrong unless you fill it in wrongly

still have to think of a name for the company that i can only establish at the end of this month (any ideas >?)... its all rather packed in terms of things to do

Well anyhow thanks for all the interest adn support and ill contact you individually as soon as i can !!!

Kind regards,  Joppe Peelen