which 9v rechargeable to get?

[sandnut]

I have a Tesoro Silver uMax. I have been looking at 9 v rechargeables seems so easy just buy one you may think but not so true I think. The 9volts come in so many mah's 200 to 600 mah's they may go higher i just got tired of looking. What mah would be good for my Silver uMax? Thank you so much for your input and help....

 

[Scanman]

I have had good luck with Ansmann. Has a 2 year warranty.

http://www.amazon.com/Ansmann-50354539V-Discharge-Rechargeable-Battery/dp/B002MDR94S/ref=sr_1_1?ie=UTF8&qid=1386647752&sr=8-1&keywords=ansmann+9v

 

[MarkCZ]

The higher the mah the more reserve time (run time) it should have.
Whatever you get I highly recommend the "LSD's" (Low Self Discharge) they are not the highest mah but they are still very good.

I buy stuff like this from battery junction on the web, also get a smart charger to go with them, battery junction had the best price I could find on the charger and the batteries.

I will NEVER buy another rechargeable battery that isn't of the LSD type!

Mark

 

[Neil]

I agree with you on this Mark. Ive been using some sanyo eneloops AA batteries for various things and sanyo says they hold like 75% of their charge over three years on the shelf. And I believe it. Some other rechargeables self discharge way to fast.
I dont know if they make a 9 volt version, but if they do thats the ones I would get. I got mine off amazon.

 

[Scanman]

The Ansmann I referenced has the Highest mAh rating on a 9v LSD name brand battery. I use LSD batteries in all devices, except ones that are used day in and day out. For everyday use devices I like the Ansmann AA 2850:

http://www.amazon.com/Ansmann-5035092-Digital-Rechargeable-Batteries/dp/B000WDSFPM/ref=sr_1_1?ie=UTF8&qid=1386696152&sr=8-1&keywords=ansmann+2850

My first choice to purchase from is always Amazon, great return policy and customer service. I also enjoy the reviews. If I was not a prime member then I would consider other suppliers. Another supplier I like is:

http://www.thomasdistributing.com/

Horizon Battery's have good prices too sometimes on Ansmann Batteries, they are also the US distributor and they provide the warranty service:

I used a set of Ansmann AA 2850 exclusively everyday in a radio to test them out, they nearly lasted 2 years of use, being charged nearly everyday. My Maha charger confirmed they were going bad, I sent them to Horizon Battery, and they sent me new ones free of charge, I think the new ones are a improved battery, they are a fuzz fatter and I have had no issues with them.

http://www.horizonbattery.com/

I have been using Sanyo Eneloops for years, they are hard to beat. Great batteries for my Golden and Cortes:

http://www.amazon.com/eneloop-typical-Pre-Charged-Rechargeable-Batteries/dp/B004UG41XW/ref=sr_1_1?ie=UTF8&qid=1386695294&sr=8-1&keywords=sanyo+eneloop

Smart Chargers I use and recommend:

http://www.amazon.com/Powerex-MH-C9000-PowerEx-WizardOne-Charger-Analyzer/dp/B000NLUSLM/ref=sr_1_2?ie=UTF8&qid=1386695433&sr=8-2&keywords=maha+charger

http://www.amazon.com/La-Crosse-Technology-Battery-Charger/dp/B000RSOV50/ref=pd_cp_e_0

http://www.amazon.com/Ansmann-5207442-US-Maintenance-Universal/dp/B003V89RYS/ref=sr_1_2?ie=UTF8&qid=1386695518&sr=8-2&keywords=ansmann+charger

The Maha is my favorite, the first Ansmann charger I purchased was junk, (and the reason for all the bad reviews) lucky for me it crapped out within 30 days and I was able to return it. I have latter read, they had a boatload of bad chargers and now the new ones have been corrected. I have had no issues with my replacement.

Poor mans battery tester:

http://www.youtube.com/watch?v=Y_m6p99l6ME

 

[tabman]

The La Crosse Technology BC-700 Alpha Power Battery Charger is a great charger, re-conditioner and tester. It's the best charger for the money. Anything less is just a waste of money. Knowing the condition of a battery is very important when using more than one battery in a devise, because the weak one is the weakest link.

The AA eneloop batteries are the best and the way to go. I use the Powerex smart charger for my 9 volt rechargeable batteries.

tabman

 

[MarkCZ]

Well, I wouldn't go as far as to say "Anything Less Is A Waste Of Money"
I've been using rechargeable batteries in ALL my detectors sense 1981 and I've faired pretty good LoL! without the BC-700. But, I did check it out and I found a really good deal on them at Wal-Mart online (if somebody is interested)

Now for Amazon!
I buy a LOT of stuff from Amazon and I pretty much always check prices there before I buy anywhere else, like I did when I bought my little smart charger from Battery Junction.
Amazon was over $40.00
Battery Junction was $25.00
Same charger!
I know it don't always work that way but sometimes it does.

I just bought an Airsoft revolver for my grandson,
airsoftdepot $82.00
Amazon $119.00
Same gun!

I've found that to get the best deal and service I keep several web sites in my favorites.
Oh by the way,
I buy all my bicycle tires and tubes from Amazon! its the only place that I can find two tires and tubes for way less than buying a new bicycle from Wal-Mart (or other like store)

I buy the Tenergy LSD batteries from battery junction, they are not the BEST! but they are very GOOD! and work great! and yes, they make the LSD's in a 9volt.

Mark

 

[Scanman]

Your right Mark, Amazon is not always the cheapest, I did not mean to imply that you should only shop at Amazon or should only use the batteries and chargers I use, sorry.

I think for most folks, if they stick with the Sanyo Eneloops and use the Sanyo dumb charger (timed) odds are they will not have any issues. But if you really have to demand that your batteries perform when needed, want to get the longest life, confirm when they are junk, then you need a smart charger that can analyze and give values. Currently the Maha Wizard One and La Crosse BC-700/1000 are the top consumer chargers.

I only recommend the Ansmann Charger if you have multiple battery types to recharge and you do not want to go the multiple charger route.

 

[hardrockminer]

The Ansmann I referenced has the Highest mAh rating on a 9v LSD name brand battery. I use LSD batteries in all devices, except ones that are used day in and day out.

I have been using Sanyo Eneloops for years, they are hard to beat. Great batteries for my Golden and Cortes:

Scanman,

Do you think there is a loss of depth (on MDers) on the 9 volt rechargeable battery useage because the real voltage is 8.4 volts not the 9 volts there advertised as.

One of the biggest issues, expecully in the cold weather is replacing batteries, before the voltage drops to much. With the voltage being low to start with, could this mean targets are being missed & your MDer isn't getting max depth even when the fully charged battery is installed.

hardrockminer

 

[MarkCZ]

Now this gets back to the electronics using internal regulators that reduce the running voltage coming off the batteries to what the electronics actually run at.
9 volt supplied electronics will run somewhere around the 5 volt range,
12 volt supplied electronics run somewhere around the 8 volt range,
and so on.

I must say that they are some Tesoro users that claim their units lose performance as the battery voltage drops (like a flashlight gets a little dimer second by second). But! all battery power "Electronics" uses regulators to set and to keep a study supply of voltage. With rechargeables you don't start off as high, but they don't drop off like a regular battery either, they hold a constant voltage then just fall off the cliff more sudden like.

Mark

 

[BillF]

I bought 1 HF 9v rechargeable for about $3 just to see how it faired. I was impressed. Now I have several, plus 3 sets of AAs at under $5 for 4.
I see no need to spend $10 or more each.

 

[Oldguy]

9 Volt 500mAh Lithium Polymer Rechargeable Batteries. These aren't the high voltage batteries they use to be. They now top out at 8.4 volts and won't damage your equipment like the older ones, but still outlast standard 9 volt batteries. I get them from http://www.thomasdistributing.com.

 

[tabman]

Well, I wouldn't go as far as to say "Anything Less Is A Waste Of Money"

Mark

Maybe I should have said the best thing since sliced bread for charging your batteries.

Amazon has the La Crosse Technology BC-700 Alpha Power Battery Charger for $29.17 with free shipping on orders over $35. No tax is charged.

The Eneloop AA batteries may cost a tad more but will more than likely save you money in the long run. Great batteries!

If you really want to know about batteries and chargers, here's the site: http://www.candlepowerforums.com/vb/forumdisplay.php?9-Flashlight-Electronics-Batteries-Included

Those guys at that site really get off on flashlights, batteries and chargers. If you want to know about Tesoro come here. If you want to know about batteries, go there.

tabman

 

[Scanman]

The Ansmann I referenced has the Highest mAh rating on a 9v LSD name brand battery. I use LSD batteries in all devices, except ones that are used day in and day out.

I have been using Sanyo Eneloops for years, they are hard to beat. Great batteries for my Golden and Cortes:

Scanman,

Do you think there is a loss of depth (on MDers) on the 9 volt rechargeable battery useage because the real voltage is 8.4 volts not the 9 volts there advertised as.

One of the biggest issues, expecully in the cold weather is replacing batteries, before the voltage drops to much. With the voltage being low to start with, could this mean targets are being missed & your MDer isn't getting max depth even when the fully charged battery is installed.

hardrockminer

Good question, I honestly do not know, but I suspect with older electronics, including older metal detectors that were designed within the specifications for the voltage of that era's battery, and I would suspect there may be a degraded performance with using a rechargeable battery with a lower voltage. But with that being said, I have not noticed any degraded performance with using rechargeable batteries with my 15+ year old LST. However I did notice when I tried using eneloops with my outdoor temperature gauge, the wireless range decreased, and I had to go back to Alkaline's. I do not know if that is the result of keeping costs low, or maybe the physical size limitations of the device? I have read and from experience, alkaline's and lithium work better when the temp. gets low.

Scanman

 

[MarkCZ]

Electronics, like radios, metal detectors, that operate on batteries only operate off the upper side of the battery voltage, think of it like a room and in the room you have the floor and the ceiling. The floor is a totally dead battery, the ceiling is a full charged battery, the electronics are designed to run in the middle area.
So an electronic device that operates on a 12volt battery supply actually runs at more closer to 8volts, in that the electronics still get full power until the battery drops off to or at the regulated level. (using only the upper 4 volts)
The same thing happens to a device that operates on a 9 volts battery supply in that its likely that the electronics are actually running at closer to 5 volts. (using only the upper 4 volts)

Now, this has come up before on the Tesoro forum that the only battery test the Tesoro's have is when you first turn them on, so your running along and the battery starts to die, Tesoro's don't have a low battery alert or warning, so in that its possible to lose performance if you run the battery at or any amount below the regulated level. With alkalines or any regular battery this voltage drop can be VERY slow, so you may go for a long time before the detector gives you a sure sign that something is really wrong to the point that you have to check the batteries. Now, the good thing about rechargeable's is they maintain their voltage level for a longer period of time and when they do run down its more like falling off a cliff in that it has a much more rapid drop, so when your using them and they go dead, you won't get to far without knowing it.

Mark

 

[tab-nabit]

Don't remember which, but I've tried some 9v NiMh rechargeables that fitted tight and had to nearly pry them out because they were a little thick on the jacket wrap. One was so tight I broke the jacket wrap getting it out.
Would like to get the best in the 9v rechargeable batteries.
My "AA" detectors.... I use Eneloops. Bought so many I have no reason to try any others. Nice to have the 4-battery cases to take along.
Chargers... I'm now trying the Nitecore I4 (bought four of them from Battery Junction), and a nice battery checker/tester.
Oh, watch out (Battery Junction) - I spend over 600 bucks just in flashlights. But sales been plenty.

 

[tabman]

Don't remember which, but I've tried some 9v NiMh rechargeables that fitted tight and had to nearly pry them out because they were a little thick on the jacket wrap. One was so tight I broke the jacket wrap getting it out.
Would like to get the best in the 9v rechargeable batteries.
My "AA" detectors.... I use Eneloops. Bought so many I have no reason to try any others. Nice to have the 4-battery cases to take along.
Chargers... I'm now trying the Nitecore I4 (bought four of them from Battery Junction), and a nice battery checker/tester.
Oh, watch out (Battery Junction) - I spend over 600 bucks just in flashlights. But sales been plenty.

Are you a flashoholic?

tabman

 

[tab-nabit]

Are you a flashoholic?

tabman

Hummmmm... "flashoholic"..... I've heard that term many times... directed at me too.

I'm no where as deep as some of these fella's:
http://www.candlepowerforums.com/vb/forum.php

Just like quality, quantity, variety, and prepared for a variety of situations & I'll leave it at that.

Oh... and for 9v, been thinking of trying:
http://www.ipowerus.com/Products/DC9V520pro/DC9V520pro.htm

 

[Scanman]

Oh... and for 9v, been thinking of trying:
http://www.ipowerus.com/Products/DC9V520pro/DC9V520pro.htm

* Please charge this batteries with the specified iPowerUS 9V Fast Smart Charger ONLY!!
* Please setup the specified charger switch on the Li-ion mode.
* Using other chargers will damage or shorten the battery's life.

hmm, 3 month warranty, special $42.00 charger , beta testing a new battery in a expensive Tesoro. Thats living to dangerous for me, screams high risk IMO.

 

[MarkCZ]

Oh... and for 9v, been thinking of trying:
http://www.ipowerus.com/Products/DC9V520pro/DC9V520pro.htm

* Please charge this batteries with the specified iPowerUS 9V Fast Smart Charger ONLY!!
* Please setup the specified charger switch on the Li-ion mode.
* Using other chargers will damage or shorten the battery's life.

hmm, 3 month warranty, special $42.00 charger , beta testing a new battery in a expensive Tesoro. Thats living to dangerous for me, screams high risk IMO.

LoL! I was kind of thinking the same thing, that's a bit much.

Sounds like something for the "End Times Survivalist Type"

Mark