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#1
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NimH battery chargers that charge cells individually?
Of all the NiMh battery chargers that charge cells individually on
the market, in your opinion, which one is the best if money is no object? Which one is the best value for the money? What is the lowest cost one that does an acceptable job? Thank you in advance for all replies. -- Whenever I hear or think of the song "Great green gobs of greasy grimey gopher guts" I imagine my cat saying; "That sounds REALLY, REALLY good. I'll have some of that!" |
#2
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NimH battery chargers that charge cells individually?
I bought a 3in1 charger from 7 day shop.
"Offers 3 ways to charge your up your AA or AAA batteries. Use with the supplied universal mains adapter (100~240V) anywhere in the world, or use with the supplied 12V car lead or use with the supplied USB lead for charging direct from your computer - the choice is yours ! " It is a standard 4 x AA battery side-by-side layout and it is nice and compact but with three ways to charge batteries it is ideal for people who are on the move. And the best bit is....It costs less than £7! Link included below if interested http://www.7dayshop.com/catalog/prod...ucts_id=102043 The batteries I was less than impressed with as they drained within a month and when I came to use them...nothing : ( I will buy the enerloop (or similar) ones next time. "Daniel Prince" wrote in message ... Of all the NiMh battery chargers that charge cells individually on the market, in your opinion, which one is the best if money is no object? Which one is the best value for the money? What is the lowest cost one that does an acceptable job? Thank you in advance for all replies. -- Whenever I hear or think of the song "Great green gobs of greasy grimey gopher guts" I imagine my cat saying; "That sounds REALLY, REALLY good. I'll have some of that!" |
#3
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NimH battery chargers that charge cells individually?
I think the Energizer 15 minute charger is the best.
NM "Daniel Prince" wrote in message ... Of all the NiMh battery chargers that charge cells individually on the market, in your opinion, which one is the best if money is no object? Which one is the best value for the money? What is the lowest cost one that does an acceptable job? Thank you in advance for all replies. -- Whenever I hear or think of the song "Great green gobs of greasy grimey gopher guts" I imagine my cat saying; "That sounds REALLY, REALLY good. I'll have some of that!" |
#4
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NimH battery chargers that charge cells individually?
"Daniel Prince" wrote in message
... Of all the NiMh battery chargers that charge cells individually on the market, in your opinion, which one is the best if money is no object? Which one is the best value for the money? What is the lowest cost one that does an acceptable job? Thank you in advance for all replies. I like my LaCrosse charger. Not cheap, but definitely one of the better chargers out there. Batteries are charged individually, and you can vary the charge rate. Mark |
#5
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NimH battery chargers that charge cells individually?
"Daniel Prince" wrote in message
... Of all the NiMh battery chargers that charge cells individually on the market, in your opinion, which one is the best if money is no object? Which one is the best value for the money? What is the lowest cost one that does an acceptable job? Thank you in advance for all replies. I've been happy enough with the RayOVac model PS4 One Hour Charger. The battery cells do get hot while charging, but the battery cells also seem to recharge reliably over and over again. For slower charging, I've also used the XG Charge Pro model CHB-7NSS, but note that this charger does NOT charge individual battery cells, it only charges them in pairs (pair A, pair B). However, the other reason I mention the XG Charge Pro charger is that the one time I completely used up a set of XG 2400 mAh AA batteries (battery operated holiday lights left on overnight)... I put all four of them in the XG Charge Pro charger and they simply would not charge (i.e., the charger light remained yellow after 10 seconds which indicates there is a problem). But, when I put the same batteries in the RayOVac one hour charger, every battery cell lit up green which indicates charging in progress. All of the battery cells took a bit longer than an hour to charge because they were completely drained, but they were all fully recharged when all of the green lights went out. |
#6
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NimH battery chargers that charge cells individually?
Circuit and a photo of homade assemby built under a high shelf in
utility room : http://share.shutterfly.com/action/p...0QcsWTNs5asXTg 120 V AC is fed directly to the cells charging in series, through a full wave rectifier bridge. Current is limited by the two, 1 mF capacitors that are switched in parallel or series by the DPDT switch, each half position indicated by the corresponding "P" and "S". The neon lamp is just to indicate current flow but also adds a bit more to the total charging current. The capacitors run "cold" since they are purely reactive. An equivalent resistor would cook along at about 10 watts. The fuse in the hot leg is very important to prevent a fire hazard and should be as small and fast acting as possible. The cells must be in the series configuration. The capacitors must be the non polarized type and rated at least 200 volts. The ones available from Radio Shack are the metal film type. The 100 ohm resistor is to protect the switch contacts and capacitors from the potential surge when switching from the S to the P position. The rectifier bridge diodes must have a high peak inverse voltage rating. The ones available from Radio Shack are 1 Amp 400 PIV. The P position charging about 80 mA is for the first 24 hours or so, then switch to the S position for ongoing trickle charging at about 20 mA. Since essentially all the series voltage drop is across the capacitance and neon lamp with it's 33K ballast resistor, the charging current will be constant and essentially independent of the number of cells charging in series, even if the output is shorted. The fuse and the series battery holder are outside the photo, and power in is the line from the lower right while the line to the battery holder is at the upper left. The Neon ballast resistor is indicated as 22K in the circuit but 33K is more typically correct and will depend on the lamp rating. TAKE CARE OF THE INHERENT SHOCK HAZARD OF THIS CIRCUIT ! THERE IS NO ISOLATION FROM FULL LINE VOLTAGE. WITH THE CELLS REMOVED, THE VOLTAGE AT THE HOLDER CONTACTS INSTANTLY BECOMES FULL 120 V RECTIFIED DC. KEEP OUT OF THE REACH OF KIDS AND PETS, AND AWAY FROM WATER. USE THIS CIRCUIT AT YOUR OWN RISK ! The circuit assumes 120 VAC 60 Hz and other supplies will require adjustments in the component ratings. On Wed, 09 May 2007 06:16:53 -0700, Daniel Prince wrote: Of all the NiMh battery chargers that charge cells individually on the market, in your opinion, which one is the best if money is no object? Which one is the best value for the money? What is the lowest cost one that does an acceptable job? Thank you in advance for all replies. |
#7
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NimH battery chargers that charge cells individually?
On Thu, 10 May 2007 01:02:49 -0700, Daniel W. Rouse Jr. wrote:
I've been happy enough with the RayOVac model PS4 One Hour Charger. The battery cells do get hot while charging, but the battery cells also seem to recharge reliably over and over again. I agree, the PS4 is a good charger and is very well built. But are they still available? About two years ago they started disappearing from all of the stores that formerly sold them, appearing briefly at great discount in surplus stores. Also, they aren't really 'One Hour' chargers any more. Included with the chargers in the package was a pair of 1,600 mAh NiMH AA cells and these could be charged in one hour. With today's higher capacity NiMH cells the PS4 is more like a 'One and 2/3 Hour' charger. |
#8
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NimH battery chargers that charge cells individually?
Daniel Prince wrote:
Of all the NiMh battery chargers that charge cells individually on the market, in your opinion, which one is the best if money is no object? Which one is the best value for the money? What is the lowest cost one that does an acceptable job? Thank you in advance for all replies. What looks to be a good one is a Sony charger with 4 2700mAh AA and 2 900mAh AAA batteries. The charger is advertised as one that can refresh the batteries, thus removing the plateau effect and getting the maximum life from your batteries. I haven't tried the charger personally to say how well it works, but since that is not a new technology, I suspect it will work just fine. $24.95+tax. -- Thomas T. Veldhouse Key Fingerprint: D281 77A5 63EE 82C5 5E68 00E4 7868 0ADC 4EFB 39F0 |
#9
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NimH battery chargers that charge cells individually?
Daniel Prince wrote:
Of all the NiMh battery chargers that charge cells individually on the market, in your opinion, which one is the best if money is no object? Which one is the best value for the money? What is the lowest cost one that does an acceptable job? Thank you in advance for all replies. See http://nordicgroup.us/chargers The bottom line is that the Maha MH-C401FS is your best choice for several reasons, including the lifetime warranty, something not available with any other charger. Look for a charger that not only charges cells individually, but that has a selectable charge rate (lower rate charging lengthens battery life, but sometimes you want a high rate charge), and can be powered from AC or DC, without the use of a funky inverter. |
#10
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NimH battery chargers that charge cells individually?
John Ortt wrote:
I bought a 3in1 charger from 7 day shop. "Offers 3 ways to charge your up your AA or AAA batteries. Use with the supplied universal mains adapter (100~240V) anywhere in the world, or use with the supplied 12V car lead or use with the supplied USB lead for charging direct from your computer - the choice is yours ! " It is a standard 4 x AA battery side-by-side layout and it is nice and compact but with three ways to charge batteries it is ideal for people who are on the move. That's the Vanson V-3380, and it doesn't charge batteries individually. Avoid it at all costs. There used to be a Sanyo that was 3 in 1, but it had overheating problems and was recalled. |
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