When your mom is complaining about her new cheap lights

[evilkitty]

My Mom bought some cheap motion sensor lights on wish... then complains about about batteries and this thing chews though them, well it uses 4 AAA batteries and a pack of rechargeable ones is about 13 USD

well since it uses 4 AAA and rechargeable are 1.2v and non-recharge at 1.5 this thing must work with 4.8-6v, I'll shove a USB cable on it, infant i will use a broken phone charge cable... dam this thing uses 430 mA and they made it battery powered...


lets ignore the fact that i thought the board fit both ways... and the wire color is reversed going to the board


She also got rechargeable puck lights and complains about there battery life... they have 160 mAh batteries in them

[sam_sam_sam]

I have a suggestion for you and that is get a cell phone battery pack and use it to power these things but the issue you might have is that if the stand by current is not high enough then it might not turn on after the first time however if you modify the battery pack a little bit an use a relay then you could have two light levels one on 4,2 volts and one on 5 volts

One way around this is to reverse engineer this a little bit and power the LED light bulbs on the 5 volts and the motion sensor circuit on the 4.2 battery voltage with it on BMS board these are very inexpensive to buy and very easy to install and use

Or go to Battery Hookup and buy one of there battery packs and modify it by taking out the BMS protection board and use a BMS board that just protects the battery cells from over and under voltage and just run it on 4.2 volts but make a decent size battery pack for it

I curious about what the stand by current is for the motion sensor circuit if it is under 100 milliamperes then if you had 10 amp hour battery pack it would run a long time in standby mode for quite some time now of course it depends on how often it is triggered to how long the battery pack would last on one charge

Now you could buy this a Battery Hookup and just use a different BMS protection board

https://batteryhookup.com/products/b...1700-50e-cells

and then glue it back together

[petehall347]

10 leds thats 43ma each . way over the top in my view .

[sam_sam_sam]

10 leds thats 43ma each . way over the top in my view .

Probably but if I were doing this I probably would power the LED light bulb on a lower voltage so you would have lower current draw but not to low that your brightness would suffer and you would not be able see anything

The one thing that I find with LED devices is that they have a tendency to over current the LED light bulb to the point that it drastically reduces the life of the LEDs or the quality of the LEDs are crap to begin with

[petehall347]

Probably but if I were doing this I probably would power the LED light bulb on a lower voltage so you would have lower current draw but not to low that your brightness would suffer and you would not be able see anything

The one thing that I find with LED devices is that they have a tendency to over current the LED light bulb to the point that it drastically reduces the life of the LEDs or the quality of the LEDs are crap to begin with

yes my view entirely . they run them maxed out . they get way too hot .

[evilkitty]

I have a suggestion for you and that is get a cell phone battery pack and use it to power these things but the issue you might have is that if the stand by current is not high enough then it might not turn on after the first time however if you modify the battery pack a little bit an use a relay then you could have two light levels one on 4,2 volts and one on 5 volts

One way around this is to reverse engineer this a little bit and power the LED light bulbs on the 5 volts and the motion sensor circuit on the 4.2 battery voltage with it on BMS board these are very inexpensive to buy and very easy to install and use

Or go to Battery Hookup and buy one of there battery packs and modify it by taking out the BMS protection board and use a BMS board that just protects the battery cells from over and under voltage and just run it on 4.2 volts but make a decent size battery pack for it

I curious about what the stand by current is for the motion sensor circuit if it is under 100 milliamperes then if you had 10 amp hour battery pack it would run a long time in standby mode for quite some time now of course it depends on how often it is triggered to how long the battery pack would last on one charge

Now you could buy this a Battery Hookup and just use a different BMS protection board

https://batteryhookup.com/products/b...1700-50e-cells

and then glue it back together

stand by looks to be 0.50 mA, had to use my meter for that one the usb tool can't even close to that low (i think it bottoms out at 0.07A), that said my jank adapter under load only showed it pulling about 250 mA and my usb tool confirmed that, either my jank adapter or multimeter is limiting the current