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how to repair flashlight batteries - IMALENT®

How to repair flashlight batteries


With the long-term use of flashlights, we have more and more garbage batteries on hand. Because of the large internal resistance, we can't use them. If we throw away the batteries, it will damage the environment. Many batteries are easy to use at the beginning. After charging for dozens of times, they gradually become more and more difficult to use. Finally, they are idle in the warehouse.

flshlight battery repair
flshlight battery repair

The principle of repairing batteries

I have tried small current charging, large current impact short circuit and other methods are not successful. Later, in several forums, I saw that someone poured water to repair the battery. The principle was very simple: when the Ni MH battery was charged, the battery would heat up, and the electrolyte would evaporate into gas and escape from the pressure relief hole. After a long time, the electrolyte dried up, resulting in the increase of internal resistance and scrapping of the battery. 


In particular, high current charging and even serious overcharging of the flashlight battery led to the faster drying of the electrolyte, while the electrolyte dried up, and the electrolyte was basically still in use In the battery, just add water to make the battery recover. There are many ways: drilling holes in the bottom of the battery, drilling holes in the top of the positive cap of the battery, and even steaming the battery in a pressure cooker, freezing it in the refrigerator, boiling it in water, pumping it in a mineral water bottle, and so on. For the method of hard damage to the battery structure such as drilling holes and drilling roof, many people use solder repair welding, the actual effect is not good, and many people can not master those difficult technologies, and damage the battery will affect the appearance, and the leakage will damage the electrical appliances in the future. It's very difficult to see the amount of water added by other methods of adding water. I don't know how much water is added. It's less important and more likely to leak. And there are some ways to make people afraid and uneasy. Is there a better and simpler way? I carefully learned from many experts' schemes, and I made some improvements in combination with the actual situation. I feel it's not bad. If you feel it's feasible, you can refer to it.

flshlight battery repair
flshlight battery repair

Let's take a look at my batteries first. There are more than ten Pinsheng batteries (all of them are 16 years old), two Shanzhai Samsung batteries (15 years old), three GP superba batteries (around 2010 or even before), and one BTY battery (actually, there are four batteries. The remaining three batteries were found a few days ago, and one has not been repaired. It's rubbish!) In 2013.


Let's talk about the results first: the success rate of more than 20 batteries is more than 90%, and 3 batteries are not repaired successfully. The only ones that can't be repaired are BTY's so-called garbage battery, one GP super bully, and one Pinsheng, which I used to do experiments. GP super Ba, which has been released for more than ten years, has three sections in total. Except for the one that hasn't been repaired, the short-circuit current of the remaining two sections has reached 3-4A after repair. I used a 35 yuan Shengli 830l digital meter to measure it. It's still not easy to install it in the camera, but it's already very good in the razor. All the remaining Pinsheng batteries, including two Shanzhai Samsung batteries, have been repaired. After they are fully charged, the use effect can be close to that of the new batteries, and the short-circuit current is mostly 5-6A. 


In the self discharge test, half a month after the battery is fully charged, 1 / 3 of the batteries are almost dead, 1 / 3 of the batteries are still full, and 1 / 3 of the batteries are low. Even if the battery is not fully charged on the day or the next day to use basically no effect, it should be said that the result is very satisfactory. I use the smart 936d charger to connect to the computer to see the discharge curve is not bad (not for smart advertising, I buy it is to see it can be online only). Although it's a little less than its 2300mah mark, even the new battery Pinsheng will be falsely marked, and there's not much less. Moreover, almost all Pinsheng in my hand use Jinpeng and haopeng batteries (ordinary Pinsheng is marked with letters and numbers beginning with JP, which should be manufactured by Jinpeng, while Teyi is marked with letters and numbers beginning with HP, which should be manufactured by haopeng), It seems that the battery cells of both of them are not so good.

Next: how to repair the flashlight betteries

Because the battery brand is different, the pressure relief hole structure is also different, Sanyo's battery pressure relief hole is very large, you can add water without drilling, repair is the most convenient! It's a pity that I only have 2 sections in my hand. I don't use it many times. It's still good. I don't need water. The others are difficult. They must be drilled with an electric drill. Some people use nails to drive them. I don't recommend it. The damage is too severe. Use the electric drill to drill the pressure relief hole larger, which will not affect the sealing. It is similar to Sanyo's pressure relief hole. This is the best way. The following is the type and structure diagram of several battery pressure relief holes for reference. After reading, I also have a specific feeling about the depth direction of the big needle. The green leather bag in my hand actually saw that there was no pressure relief hole, which made me marvel! I don't know how to design its pressure relief hole. If there is no pressure relief hole, how can the electrolyte dry up, and if there is no pressure relief hole, the charging and heating pressure will explode, which is abnormal.

Processing to recover flashlight batteries

 let's introduce the process, The Tools that i use:

  • surgical blade

  • small electric drill

  • medical pure water

  • syringe needle tube

  •  two pins

how to repaire battery
how to repaire battery
how to repaire battery
how to repaire battery
how to repaire battery
how to repaire battery

I don't spend money, and you can also basically spend no money:

A bottle of 500 ml medical pure water is only a few yuan. You can ask the nurse of the hospital for a waste needle tube, and then ask her to pump a tube of pure water for you;

You can also find aluminum alloy decoration without an electric drill The shop asks the man to drill for you. At most, it's just a good cigarette.;

First of all, cut the neck of the battery close to the positive electrode with a sharp knife, and remove the insulating sheet and the outer skin. (I had no experience at the beginning, so I used the method of peeling off all the batteries, and then came up with this move). 


Then, use an electric drill to drill a pressure relief hole at the positive electrode of the battery (Sanyo's does not need a drill, its pressure relief hole is relatively large and high). The electric drill just started to drill more holes than before It's troublesome. The battery cap is round and easy to slide. After you drill two holes, you can get hold of it. Expose the rubber valve inside. Clean the positive electrode with cotton swab and pure water. Use a pin (if it's difficult to absorb water at the back, you can use two pins to increase the gap of the pressure relief valve) to insert 3-5mm along the bottom to the center. Use a syringe to drop pure water into the positive electrode ring for 0.6-0.8ml (this amount is my test) It's only after several tests. Don't add more! More will leak! The effect of adding less is not good), and then put the battery into a water cup filled with hot water to heat for about 1 minute (I didn't experience it at first. I burned the bottom of the battery with a lighter to burn the battery skin out). You will find a lot of bubbles coming out. When there are no bubbles, take out the battery immediately, and then put it into another water cup filled with cold water (it's better to add some ice). At this time, the water will slow down Inhale into the battery (some batteries even suck up the water instantly!) Then put the battery cover and insulating sheet back to the original place, and glue it to the same place. If the condition is good, you can use transparent heat shrinkable cover to seal it better. If the cover is broken, you can also use colored heat shrinkable cover to seal it directly.

Finally, I put on a few more good photos. There are the shrink skin I bought, transparent. And inadvertently obtained battery skin, after the package is almost new battery! But one of the two German batteries I tried to pack is the test product. It is a little bit more water added and the liquid leaks. You can see that the positive pole is a bit wet. But now that all is done, I'm not ready to take any more photos. The battery skin is silver, and the flash reflects the color of the flash when taking photos.

My DIY battery

repair flashlight battery

Add a few extra words

Please use up the battery before adding water, otherwise the pin will be short circuited, which may cause scalding, and electrolysis will occur after adding water, which will affect the effect of adding water. Secondly, do not charge the battery immediately after adding water. Put the battery upright for a few hours and then charge it with a small current. After discharging, recharge it again. The best effect can be achieved by cycling about 3 times. I used it after adding water in July. It's been 4 months now, and I haven't found any problems. It can be seen that adding water is not useless at all as some guys say, unless the water is added incorrectly (actually not added), or the added water has too many impurities, resulting in serious self discharge, which is not as troublesome as some guys say. I think it's extremely simple. Now I can add water to a battery in less than 5 minutes, if Sanyo estimates that it won't take more than 3 minutes. In addition, the best charger is high precision, can automatically stop the full, otherwise still continue to charge after full, it is easy to charge bad in the future. The charging current of the charger is a little lower, and the battery with low heat is not easy to damage the battery. I didn't find that the online saying that the greater the charging current, the greater the discharge current is correct. I charged with 1A current, and the discharge current is almost the same as that after 100mA charging. 


I hope it is the individual difference of my battery brand. Some people use drinking water and even tap water, which may be no problem, but I still recommend pure water. I recommend medical water for injection. The water that can be used for people is much cleaner than the water you drink!

How to purchase the best LED flashlight for me? - IMALENT®

How to purchase the best LED flashlight for me?

If you have not got a flashlight in an even though, you could be stunned to listen to that rechargeable models place just like very as those that require non reusable electric batteries. While it made use of to hold true that you may assume a rechargeable flashlight to become less-bright or otherwise final as lengthy, that is merely certainly not a trouble nowadays.


Because of LED light bulb modern technology, which may make a brilliant, cleanse lighting making use of little electrical power, brand-brand new flashlights might offer a lot more lighting compared to you may expect—or require, which is actually why the lightings within this particular listing all of have actually changeable setups.


This brand-brand new era of rechargeable flashlights Imalent store all of are actually evaluated as beaming intense, consistent lighting for 10s of 1000s of hrs. The distinctions in cost show how much time they will store a fee as well as exactly how much the light ray of light are going to get to, and also waterproofing as well as some numerous lighting setups (some have actually added lightings on the physical body of the flashlight, certainly not merely the frontal). Away from cost, you ought to take into consideration exactly how you strategy to make use of your flashlight: Is actually it for emergency situations, to always keep in the cars and truck, to make use of routinely for ventures, or even outdoor camping? Take into consideration your certain demands when parsing the numerous possibilities. Listed below, you will locate are actually a couple of excellent possibilities for all of these circumstances.

Although headlamps have actually rose in recognition, flashlights continue to be a really good option whenever a portable lighting is actually favored, like:

at any time you wish the best mobile light ray of light offered.

when dexterity, as well as accuracy in managing the lighting, is vital.

having the ability to put down an illumination to work with a job.

indicating.


Innovations in LED (light-emitting diode) modern technology as well as electric battery performance have actually caused flashlights that are actually smaller sized, lighter as well as better compared to they were actually merely a couple of years earlier.

Exactly just what is actually the greatest LED flashlight for you? This write-up are going to aid you slim your choice.

Outlet Flashlights


Recognizing Your Flashlight Options

The essential aspects to review when picking a flashlight:

Lighting outcome;

Electric battery kind as well as manage opportunity;

Dimension as well as significance;


Flashlights assortment coming from under $20 to over $200, however they might coincide dimension. Exactly just what are actually the distinctions? Illumination is actually the greatest one. A more expensive lighting is actually more effective because of making use of accelerated light bulb, electric battery as well as wiring modern technology. A rechargeable electric battery may contribute to the expense, as may functions like powerful impact- as well as water-resistance, helpful warm dissipation as well as numerous lighting fixtures methods.

Purchasing face to face? Look at the observing:


Exactly how carries out the lighting activate as well as off? Can it be actually accidentally changed on within your load? Or even, if you consider to make use of it in cool ailments, exactly how conveniently can you switch over it on or even off putting on handwear covers?

Carries out it seem ruggedized sufficient (or even, alternatively, lighting sufficient) for your demands?

Exactly how carries out it feeling in your palm?

Is actually a device needed to alter electric batteries?


lashlight Functionality

Offered in 2009, Imalent company specifications for flashlights guarantee that versions are actually checked as well as ranked likewise. Observance along with these specifications is actually volunteer as well as the makers carry out their very personal screening, however very most significant brand names currently feature the observing functionality records on their product packing.

Lighting Outcome.


Assessed in lumens. This is actually a gauge of the strength of the lighting happening away from the flashlight, on the greatest illumination establishing powered through brand-brand new electric batteries. It might likewise be actually presented for numerous lighting setups. This is actually a terrific evaluation resource, however doesn't inform the entire tale around illumination. Light ray of light strength, proximity as well as kind all of affect the performance of an illumination in various requests. Lighting outcome may assortment coming from a moderate twenty lumens (excellent for analysis a book) to a terrain-scorching 3500 lumens.


Light ray of light Proximity

Assessed in meters. This is actually exactly how much the lighting are going to sparkle just before the illumination reduces to the comparable of the lighting coming from a moon. Moon lighting is actually looked at appropriate for risk-free as well as mindful traveling outdoors. This proximity are going to differ along with the illumination establishing chosen.


Manage Opportunity

Assessed in hrs. How much time carries out it get the lighting outcome to fall to 10% of the ranked outcome on brand-brand new electric batteries, pivoted to the nearby fourth hr. Lighting outcome might progressively lessen with time, or even continue to be mostly continuous and afterwards all of a sudden lessen. Manage opportunity is actually often offered for each and every lighting establishing. A Runtime chart, if offered, gives the greatest illustration of the functionality of an illumination with time.


Influence Protection

Assessed in meters. Lightings are actually checked through going down all of them 6 opportunities into cement at the ranked proximity. This examination is actually mostly to guarantee the lighting stays useful after periodic unexpected decreases. It's not an examination of protection for an illumination being actually manage over, being actually happened along with a massive protest or even being actually made use of to strike various other items.


Sprinkle Protection

Ranked making use of the IPX unit. Sprinkle protection is vital if making use of your lighting in the storm or even all around physical bodies of sprinkle. 3 scores are actually made use of:

Shows an IPX4 score, which is actually spray immune coming from all of slants, after the influence examination was been applicable.

Shows a sprinkle submersion score, likewise after the influence examination.

IPX7 - short-term immersion: as much as thirty minutes at a deepness of 1m.

IPX8 - submersion: as much as 4 hrs at the pointed out deepness.

For more conversation of specialized lighting fixtures subjects, view the REI Specialist Recommendations write-up, Headlamps: The best ways to Decide on.


Added Functions as well as Features

Some or even each of these non-ANSI-rated associates are going to likewise affect your flashlight choice:

Light bulb Kind

Developments in LED modern technology have actually made various other light bulb styles practically outdated. Incandescents like krypton light bulbs still exist in a couple of flashlight versions, however it is actually difficult to defeat the electricity performance, manage opportunity, influence protection as well as illumination possibilities of an LED flashlight.


Light ray of light Kind

The lense reflector that neighbors a light bulb effects exactly how the lighting is actually spread. 


The 3 popular possibilities:

Flooding (or even fixed): A singular light ray of light size. Helpful for basic jobs in camp or even while strolling.

Area (or even focused): A singular light ray of light condensed into a limelight to permeate a cross country. This is actually finest for route-finding or even various other hectic task.


Flexible: Light ray of light size varies coming from broad to centered, or even any kind of factor between. This implies, as an example, a mountain climber seeking the following sound will make use of a place beam; to analyze a chart, a flooding light ray of light.


Moderated Outcome

Lightings along with a moderated electrical power source sustain a stable, near-peak illumination degree throughout many of the batteries' life process. Close to completion, nevertheless, lighting outcome decreases off suddenly as well as dramatically. Unregulated lightings begin intense after that gradually develop dimmer as they drainpipe electrical power coming from the electric batteries.


Electric battery Kind

The kind as well as accessibility of substitute electric batteries is actually usually a think about picking a flashlight.

Non reusable: The best popular electric battery dimensions in operation, AAA or even AA, are actually easily offered. CR123A is actually likewise an usual option, however is actually more costly as well as could be more challenging to locate. Their benefit is actually a much higher voltage outcome for a smaller sized dimension as well as significance, producing achievable a better flashlight in a smaller sized, lighter package deal. Flashlights making use of Design tissue electric batteries are actually still offered if you wish a baton-sized resource for protection or even an illumination that are going to certainly not receive dropped in a wallet.

Rechargeable: Integrated lithium-ion electric batteries could be charged with a USB hookup coming from a computer system, AC or even DC electrical outlet or even solar board. The greater ahead of time expense is actually much more than produced for due to the reduced on-going operating expense, no require for non reusable electric batteries as well as lowered lose.

Eco-friendly: Flashlights along with an integrated electric battery invigorated through a palm crank or even solar board are actually excellent for unexpected urgent sets.


Care: Don't make use of lithium or even lithium-ion electric batteries along with any kind of flashlight unless suggested due to the supplier. You threat destroying an illumination through mismatching it along with lithium electric batteries.

Methods


A singular establishing suffices for general-purpose make use of. Some versions promotion 2 or even more methods like reduced, tool, higher as well as enhance). You might hardly ever make use of much more than one setting, however possessing thealternativeto toss an extra-strong light ray of light as needed could be assuring. The better the setting, the much shorter the runtime. Some versions might promotion unique methods like a strobe or even SOS include. Individual programmable methods or even setting sequencing might be actually a choice. This might be actually an attribute that's combined into the flashlight, or even collection atop program as well as downloaded and install to the lighting by means of a USB cord.


Manages

The kind of on/off as well as lighting fixtures setting shifts is vital for some individuals. Drive switches as well as sliders are actually commonly finger run. A turning frame may likewise act as a button, demanding 2 palms to run. A security padhair include avoids the lighting coming from being actually inadvertently activated, assisting stop unforeseen standard electric battery exasperation as well as hassle.

Some lightings include a quiet (non-clicking) insta-beam work through which a little dismaying the switch over triggers the lighting up till either a complete hit leaves behind it on, or even launching the switch over transforms it off, without needing to pattern with all of methods. This is actually a preferable include in police functions.


Products as well as Design

Very most flashlight physical bodies are actually either plastic or even light weight aluminum alloy. Some include stainless-steel in the head of the flashlight for added influence protection. Certainly not all of light weight aluminum physical bodies are actually the same—thinner types are actually lighter, thicker ones are actually harder.


Round physical bodies are actually the best popular design, however as these have the tendency to roll all around when laid on a surface area, some versions are actually profiled to avoid rolling. Furthermore, the area of the physical body might have actually a knurled trend to offer grasp as well as decrease slipping up.


Dimension as well as Significance

This is actually mainly an individual choice. A bigger, much larger device is actually certainly not automatically better, however it is actually very likely to include an extensive manage opportunity because of a better electric battery ability.

CREE XHP 70 2nd for IMALENT flashlight - IMALENT®
IMALENT has been using the most advanced XHP 70 second-generation led. This is also the preferred led for IMALENT flashlights, which is higher than the first-generation products.

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