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Toping off batteries before a hunt
- Thread starter Waterdog
- Start date
Lodge Scent
Well-known member
If my coil was less than 3/4 I might. I've gone 8 hours on half a charge at a TX of 2. If you use TX 3 ( 4 kHz is default TX3) you will want a full charge.
myrtlebeach
Member
Does it do any damage to the life of the battery if you charge it before a hunt if it was at 3/4 of a charge? I wouldn't think it would but it would be nice to know. Thanks
Lithium batteries don't have memory so you can charge them early. Remember all batteries have a life cycle and can charge discharge so many times. They should never be run down below 20% or charged to 100% We have no control over the charging to 100% that should be handle internally or a smart charger. Worst thing you can do is run them till they die.
vtcivilwar
New member
Stix said:
Is this just a characteristic of lithium batteries? I remember in the old days we had rechargeable Mag flashlights and was told to run them dead every month and give them a full charge?
Willee - Texas
Well-known member
When charging the coil battery I see the light stays on solid.
When it is fully charged it starts flashing.
I assume the charging circuits measure when the battery is fully charged and cut off.
This should eliminate overcharging and allow the charger to be hooked up overnight ... if my assumption is correct.
So why the warning about overcharging if it can not happen?
It would be nice if there were a beeper that would sound off when the battery is down to 10% so that you dont run them flat.
When the detector is not being used I see the coil light still flashes about once every 2 seconds.
if I dont use the detector for a while how long before that flashing light will run the battery down flat and possibly damage it?
When it is fully charged it starts flashing.
I assume the charging circuits measure when the battery is fully charged and cut off.
This should eliminate overcharging and allow the charger to be hooked up overnight ... if my assumption is correct.
So why the warning about overcharging if it can not happen?
It would be nice if there were a beeper that would sound off when the battery is down to 10% so that you dont run them flat.
When the detector is not being used I see the coil light still flashes about once every 2 seconds.
if I dont use the detector for a while how long before that flashing light will run the battery down flat and possibly damage it?
As far as that light flashing in storage. You will be fine. If you store it for much longer than say for the winter or really extended times well then that may but that light uses so little power I would not worry about it. As long as you have it charged up you will be fine. The guidelines I put out here are for maximum life out of your batteries. Take care of them and you will be much more productive and be able to stay in the field longer as the batteries age compared to someone who charges more often and discharges them completely.
Just to make it easier to understand. Here is what happens when you let your batteries die to often.
A partial discharge reduces stress and prolongs battery life. Higher temperature and high currents also affect cycle life. The earlier you charge the unit the more charging cycles you get. Look what happens when you let the batteries go 100% dead... 300 to 500 charges compared to thousands above 50%. So top them off is the best thing to do. One last thing about every 40 charges let the battery go down to almost dead. Not completely and recharge full. That will keep the power gauge reading correctly.
100% DoD 300–500 <------------------- This is why I say never let the lith batteries go dead 100%
50% DoD 1,200–1,500
25% DoD 2,000 - 2,500
10% DoD 3750 - 4700
PS. The reason you do not want to store your lith batteries at low charge is because over a extended period they may be incapable of taking a charge. Under 40% charge it up for storage.
A partial discharge reduces stress and prolongs battery life. Higher temperature and high currents also affect cycle life. The earlier you charge the unit the more charging cycles you get. Look what happens when you let the batteries go 100% dead... 300 to 500 charges compared to thousands above 50%. So top them off is the best thing to do. One last thing about every 40 charges let the battery go down to almost dead. Not completely and recharge full. That will keep the power gauge reading correctly.
100% DoD 300–500 <------------------- This is why I say never let the lith batteries go dead 100%
50% DoD 1,200–1,500
25% DoD 2,000 - 2,500
10% DoD 3750 - 4700
PS. The reason you do not want to store your lith batteries at low charge is because over a extended period they may be incapable of taking a charge. Under 40% charge it up for storage.
Southwind
Well-known member
1: Keep your batteries at room temperature
That means between 20 and 25 degrees C. The worst thing that can happen to a lithium-ion battery is to have a full charge and be subjected to elevated temperatures. So don't leave or charge your mobile device's battery in your car if it's hot out. Heat is by far the largest factor when it comes to reducing lithium-ion battery life.
2: Think about getting a high-capacity lithium-ion battery, rather than carrying a spare
Batteries deteriorate over time, whether they're being used or not. So a spare battery won't last much longer than the one in use. It's important to remember the aging characteristic when purchasing batteries. Make sure to ask for ones with the most recent manufacturing date.
3: Allow partial discharges and avoid full ones (usually)
Unlike NiCad batteries, lithium-ion batteries do not have a charge memory. That means deep-discharge cycles are not required. In fact, it's better for the battery to use partial-discharge cycles.
There is one exception. Battery experts suggest that after 30 charges, you should allow lithium-ion batteries to almost completely discharge. Continuous partial discharges create a condition called digital memory, decreasing the accuracy of the device's power gauge. So let the battery discharge to the cut-off point and then recharge. The power gauge will be recalibrated.
4: Avoid completely discharging lithium-ion batteries
If a lithium-ion battery is discharged below 2.5 volts per cell, a safety circuit built into the battery opens and the battery appears to be dead. The original charger will be of no use. Only battery analyzers with the boost function have a chance of recharging the battery.
Also, for safety reasons, do not recharge deeply discharged lithium-ion batteries if they have been stored in that condition for several months.
5: For extended storage, discharge a lithium-ion battery to about 40 percent and store it in a cool place
I've always had an extra battery for my notebook, but it would never last as long as the original battery. I know now that it's because I was storing the battery fully charged. That means oxidation of lithium-ion is at its highest rate. Storing lithium-ion batteries at 40 percent discharge and in the refrigerator (not freezer) is recommended
That means between 20 and 25 degrees C. The worst thing that can happen to a lithium-ion battery is to have a full charge and be subjected to elevated temperatures. So don't leave or charge your mobile device's battery in your car if it's hot out. Heat is by far the largest factor when it comes to reducing lithium-ion battery life.
2: Think about getting a high-capacity lithium-ion battery, rather than carrying a spare
Batteries deteriorate over time, whether they're being used or not. So a spare battery won't last much longer than the one in use. It's important to remember the aging characteristic when purchasing batteries. Make sure to ask for ones with the most recent manufacturing date.
3: Allow partial discharges and avoid full ones (usually)
Unlike NiCad batteries, lithium-ion batteries do not have a charge memory. That means deep-discharge cycles are not required. In fact, it's better for the battery to use partial-discharge cycles.
There is one exception. Battery experts suggest that after 30 charges, you should allow lithium-ion batteries to almost completely discharge. Continuous partial discharges create a condition called digital memory, decreasing the accuracy of the device's power gauge. So let the battery discharge to the cut-off point and then recharge. The power gauge will be recalibrated.
4: Avoid completely discharging lithium-ion batteries
If a lithium-ion battery is discharged below 2.5 volts per cell, a safety circuit built into the battery opens and the battery appears to be dead. The original charger will be of no use. Only battery analyzers with the boost function have a chance of recharging the battery.
Also, for safety reasons, do not recharge deeply discharged lithium-ion batteries if they have been stored in that condition for several months.
5: For extended storage, discharge a lithium-ion battery to about 40 percent and store it in a cool place
I've always had an extra battery for my notebook, but it would never last as long as the original battery. I know now that it's because I was storing the battery fully charged. That means oxidation of lithium-ion is at its highest rate. Storing lithium-ion batteries at 40 percent discharge and in the refrigerator (not freezer) is recommended
Southwind said:
Didn't I just say these things
Though if you're going to copy and paste a website word for word you should quote it and give credit to them. http://www.techrepublic.com/blog/five-apps/five-tips-for-extending-lithium-ion-battery-life/ Another good website. http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Willee - Texas
Well-known member
Stix said:
Southwind said:
Looks like conflicting info to me ... which is correct?
There always will be. For extended in the closet especially when there is a drain on the coil due to the light flashing I would store at 90%. There is conflicting information but this does not hurt the batteries anywhere near running them dead. That is the key factor here. Don't run the batteries dead and recharge them often and asap. Let them discharge low not completely dead about every 40 cycles and you will be happy.
Like I said in my original post worse thing you can do is run them very low or worse completely dead. Store above 50% I like 90% for reasons stated. <------- This is #1 everything else is minor.
Like I said in my original post worse thing you can do is run them very low or worse completely dead. Store above 50% I like 90% for reasons stated. <------- This is #1 everything else is minor.
Southwind
Well-known member
Excuse me Francis! Five tips for extending lithium-ion battery life By Michael Kassner
It was a quick post and I didn't get back before the time was up to edit so I couldn't add the original source like I wanted.
You the self-appointed post police?.
It was a quick post and I didn't get back before the time was up to edit so I couldn't add the original source like I wanted.
You the self-appointed post police?.
Southwind
Well-known member
No, Someone with a life!
I have used Lithium's in my Drone, Copters and RC planes for years. I have had these copied to a folder so I pasted them as a compiled set rather than a rambling. Unless you're just looking to increase your post count?
Let's not ruin a perfectly good post by straying.
I have used Lithium's in my Drone, Copters and RC planes for years. I have had these copied to a folder so I pasted them as a compiled set rather than a rambling. Unless you're just looking to increase your post count?
Let's not ruin a perfectly good post by straying.
Yea speaking of post count....... Are you done having your feeling hurt? Grow up a bit. I didn't berate you just offered advice. Seeing how you act shows alot. I don't need post count. If I did I sure as heck would not been here 6 years with such a low count. A life that crabby must be a heck of a time. I know it's easier to copy paste but sometimes just the jest will do.
Enjoy the day. Hope it's a good one.
Enjoy the day. Hope it's a good one.
Southwind
Well-known member
OK let's look at the facts.
1. Either you were familiar with those 5 tip being posted elsewhere, in which case you should have posted them to avoid people having to ask unless of course you were just looking in increase your post count, or I have a stalker.
2. You would have had to search the Internet looking to see if I had posted what someone else had. HUM? Stalker alert!
You live in your mom's basement?
1. Either you were familiar with those 5 tip being posted elsewhere, in which case you should have posted them to avoid people having to ask unless of course you were just looking in increase your post count, or I have a stalker.
2. You would have had to search the Internet looking to see if I had posted what someone else had. HUM? Stalker alert!
You live in your mom's basement?