What kind of battery charger ?

Started by mowhoong in sci.electronics.basics7 years ago 28 replies

I brought a Ansmann ALCS2-24A' auto voltage detacts charger from a shop " Element 14". I encounter a problem. My 6 volt 10A lead acid battery at...

I brought a Ansmann ALCS2-24A' auto voltage detacts charger from a shop " Element 14". I encounter a problem. My 6 volt 10A lead acid battery at its weakest measure 3.59 volt when I connected to this charger which indicate it tobe 2 volt value instead of 6 volt. I I assumed the issue was problem with the charger and brought a 2nd one with same brand and model. At testing counter in the shop ,...


NiMH charger recommendations?

Started by DaveC in sci.electronics.basics6 years ago 20 replies

First of all, this is a request for a *recommendation*, not a request for someone to do Google searches for me. - - - I need a charger for AA,...

First of all, this is a request for a *recommendation*, not a request for someone to do Google searches for me. - - - I need a charger for AA, AAA, and 9v batteries. Four of the AA or AAA at a time is OK. I see very few that support all these batteries (Maha makes a separate charger for 9v). Of those that do, not all use delta-V termination (or don't specify). Of those remaining th...


OT Lipo battery charger

Started by George Herold in sci.electronics.basics1 year ago 1 reply

So my son is into RC... He's bought some old RC cars back to life and watns to run them with new Lipo batteries. We are now looking for a...

So my son is into RC... He's bought some old RC cars back to life and watns to run them with new Lipo batteries. We are now looking for a battery charger. Any recommendations? price ~$100. This one in particular, http://www.ebay.com/itm/Venom-Pro-Duo-80W-X2-Dual-AC-DC-7A-LiPo-NiMH-RC-Battery-Balance-Charger- /401004922785 TIA George H.


Making DC battery Power

Started by Meanie in sci.electronics.basics4 years ago 19 replies

I asked a question about batteries and DC power adapter a few weeks ago and now I have a small (I hope) dilemma. I am using the advice of a...

I asked a question about batteries and DC power adapter a few weeks ago and now I have a small (I hope) dilemma. I am using the advice of a cordless battery pack and charger to power my wife's yarn spinner. I purchased a charger for a tool I already have to eliminate buying more accessories. Therefore, I bought this second charger > > > http://www.flickr.com/photos/18223943@N06/92134118


Pin extraction tool

Started by MG in sci.electronics.basics4 years ago 3 replies

I have a Kenwood portable radio charger KVC-5A for my fire department radio. We purchased some new Kenwood radios. The new radios require...

I have a Kenwood portable radio charger KVC-5A for my fire department radio. We purchased some new Kenwood radios. The new radios require a KVC-20L vehicle charger. Kenwood moved one pin on the wire plug to the charger. Rather than running a new set of cables from the battery to the charger, I want to move one pin. However, I cannot find the correct sized pin extraction tool. I purchased a 0....


Why is Motorola USB not Blackberry USB (chargers = 5.0v, 5.9v, 350ma, 500ma)

Started by Emily in sci.electronics.basics9 years ago 18 replies

Is it true that one MUST use ONLY the EXACT USB charger that comes with their cell phone or digital camera? Are USB chargers really not...

Is it true that one MUST use ONLY the EXACT USB charger that comes with their cell phone or digital camera? Are USB chargers really not interchangable? The T-Mobile store told me I could only use their T-Mobile charger for my new USB based cellphone. After showing me the charger for the Motorola V195 which is 5.9 volts 375ma, they then opened a desk drawer and handed me three melted...


car 12v phone chargers

Started by Ivan Vegvary in sci.electronics.basics4 years ago 6 replies

Why do they take longer to charge than mt wall charger. The output of my wall charger is 5v. Seems like my car should be able to imitate that...

Why do they take longer to charge than mt wall charger. The output of my wall charger is 5v. Seems like my car should be able to imitate that level. ?? Thanks Ivan Vegvary


Charge gel cell with car charger?

Started by Mike Cook in sci.electronics.basics5 years ago 57 replies

A friend has a battery powered Ryobi lawn trimmer ("weed whacker") which doesn't work. The 12vdc wall wart puts out only ~ 12.4v. I charged...

A friend has a battery powered Ryobi lawn trimmer ("weed whacker") which doesn't work. The 12vdc wall wart puts out only ~ 12.4v. I charged the lead-acid gel cell using a car charger. The charge rate (selectable) was 0.5A. Afterward the trimmer seemed to work as new. Can the car charger be used to charge this battery? He can install a timer to limit charge time if that's something req...


OT: Lead Acid Float Charger

Started by Jim Thompson in sci.electronics.basics1 year ago 54 replies

I drive my pick-em-up truck every few months. So the battery is dead when I go to use it... like today :-( I'm looking for recommendations...

I drive my pick-em-up truck every few months. So the battery is dead when I go to use it... like today :-( I'm looking for recommendations for the _best_ (*) float charger I can buy to just plug the truck into when it's parked. (*) Cost no object. ...Jim Thompson -- | James E.Thompson | mens | | Analo...


Re: Battery charging circuit

Started by Uncle Steve in sci.electronics.basics5 years ago 30 replies

On Mon, May 06, 2013 at 12:01:44PM -0400, Uncle Steve wrote: > Back again for some more abuse. > > I'm building a 12V battery charger that...

On Mon, May 06, 2013 at 12:01:44PM -0400, Uncle Steve wrote: > Back again for some more abuse. > > I'm building a 12V battery charger that will be controlled by a small > low-power microcontroller. I've not yet hooked up the > microcontroller, but most of the code is written and I'm trying to > finalize the charger electronics before I hook it up. > > The circuit is very simple. An 18V


AC Adaptor can work as a charger

Started by Mint in sci.electronics.basics7 years ago 15 replies

There were some that thought that an AC adaptor could not be used sucessfully as a battery charger. My experiment results: A sealed lead...

There were some that thought that an AC adaptor could not be used sucessfully as a battery charger. My experiment results: A sealed lead battery (UB1213) with an initial voltage of 9.7 V was charged to a final voltage of 12.6 V using a 500 m.a. AC/DC adaptor. Took about an hour. A phone recorder was hooked up and tested using only the 12 Volt battery as it's power source. Answere...


How can a Philips AC-DC transform make so much noise?

Started by Merciadri Luca in sci.electronics.basics8 years ago 14 replies

Hi, I am using a Philips HQ 8000 100-240V /D 50-60 Hz, 9W, shaver charger and transformer. I always let it plugged in, and then, to charge...

Hi, I am using a Philips HQ 8000 100-240V /D 50-60 Hz, 9W, shaver charger and transformer. I always let it plugged in, and then, to charge the shaver, I plug the shaver in the charger, and everything's right. However, it makes a very irritating noise, some piercing one, even if the shaver is not plugged. This sound is so much unbearable that I have to disconnect it before going to bed. I...


Is this homemade battery charger circuit dangerous?

Started by Kanon Kubose in sci.electronics.basics4 years ago 41 replies

The other day I found plans for a $3 battery charger that was just a diode = and light bulb in series with the battery, using mains electricity....

The other day I found plans for a $3 battery charger that was just a diode = and light bulb in series with the battery, using mains electricity. I poste= d a question about modifying it with a dimmer switch here: https://groups.g= oogle.com/forum/#!topic/sci.electronics.design/dW8otaIKNyE Everyone there said I was a candidate for a darwin award and that I should = come to sci.electronics.ba...


Charging A Lead Acid Battery

Started by Dave.H in sci.electronics.basics10 years ago 26 replies

How would I go about building a charger for a lead acid battery. Jaycar Electronics sells a 5 amp hour 6 volt SLA battery for use in flashlight...

How would I go about building a charger for a lead acid battery. Jaycar Electronics sells a 5 amp hour 6 volt SLA battery for use in flashlight lanterns, but as far as I can tell they don't sell the charger. Battery http://www.jaycar.com.au/productResults.asp?FORM=KEYWORD (CAT. NO. SB2498) Thanks


Re: Battery charging circuit

Started by Uncle Steve in sci.electronics.basics5 years ago 2 replies

On Mon, May 06, 2013 at 02:35:52PM -0500, Tim Wescott wrote: > On Mon, 06 May 2013 12:01:44 -0400, Uncle Steve wrote: > > > Back again for...

On Mon, May 06, 2013 at 02:35:52PM -0500, Tim Wescott wrote: > On Mon, 06 May 2013 12:01:44 -0400, Uncle Steve wrote: > > > Back again for some more abuse. > > > > I'm building a 12V battery charger that will be controlled by a small > > low-power microcontroller. I've not yet hooked up the microcontroller, > > but most of the code is written and I'm trying to finalize the charger > > e


Q: Any Problems with chargers with too high or low a capacity

Started by Anonymous in sci.electronics.basics5 years ago 2 replies

I'm very happy that more and more wall chargers are the 5 VDC micro or mini types but many people just grab the nearest one. My questions are...

I'm very happy that more and more wall chargers are the 5 VDC micro or mini types but many people just grab the nearest one. My questions are what problems, if any, exist in using a charger that has a too low or too high amp capacity for the item being charged. Question 1: Say my camera came with a charger rated .7Ahr and I try to charge this camera with one rated .5 or .3Ahr. Seems to me th...


Current regulator

Started by nescafe in sci.electronics.basics5 years ago 40 replies

Hi. I need to create some kind of charger. The "charger" will be powered from dc source ( 1,5 AA battery ). The voltage should stay the same...

Hi. I need to create some kind of charger. The "charger" will be powered from dc source ( 1,5 AA battery ). The voltage should stay the same but the current should be regulated like this: - charge time: 1 day --> 1,5 / 50mA - charge time: 2 hours --> 1,5 / 100mA - charge time: 4 hours --> 1,5 / 200mA - charge time: 4 hours --> 1,5 / 500mA - charge time: 7 hours --> 1,5 / 1A ----------


Charging nicad batt pack with variable voltage current limited bench power supply

Started by Wes in sci.electronics.basics8 years ago 9 replies

I was out hanging drywall in my garage when my Black and Decker Firestorm 14.4v charger or drill failed. From what I've read, the chargers are...

I was out hanging drywall in my garage when my Black and Decker Firestorm 14.4v charger or drill failed. From what I've read, the chargers are a bit flaky but then maybe the drill died. I had a brain storm, I have a Tenma variable power supply that I can set to limit current. That seems like a battery charger to me. So I set it to 14.4v open volts, 2.0A current. Atm I'm putting 12 volt...


motorola v6 LCD,v8 LCD,K1 LCD,K2 LCD,K3 LCD

Started by jimma in sci.electronics.basics10 years ago

www.cellphonepartszone.com export Mobile phone oem accessories motorola MPX housing,motorola V8 housing,motorola v3m...

www.cellphonepartszone.com export Mobile phone oem accessories motorola MPX housing,motorola V8 housing,motorola v3m LCD,motorola accessories, motorola v3 housing,motorola v3 keypad,motorola v3 flex cable,motorola v3 LCD, motorola v3 lens,motorola v3 battery,motorola v3 charger,motorola v3 car charger, motorola v3 data cable,motorola v3 silicon skin case,motorola v3 crystal case, motorola...


Transistors

Started by Uncle Steve in sci.electronics.basics5 years ago 60 replies

Ok, this is a question that is not so battery-charger specific, but is obviously related. So here's a circuit fragment: 18V ...

Ok, this is a question that is not so battery-charger specific, but is obviously related. So here's a circuit fragment: 18V +----+--------__^------/\/\/-----------+ | 2n3055| 0R5 | | | 5W / | | \ 5R10W | | / |_______|>