2 x Duracell Solar Rechargeable Lithium Battery Advanced 14430 400mAh /1.28Wh $0.10
2 x Duracell Solar Rechargeable Lithium Battery Hi-Performance 18500 1000mAh /3.2Wh $0.10
Both made in China.
I found those batteries only @Bunnings, Chatswood, NSW. and still have 40+ leave after I bought 2 packs each.
As an ozbargainner always buy first think later~. I have no idea to how to use those 14430 and 18500 batteries. Please commend below if you have any suggestion.
Damn only if they were 18650
strap some foil to the top and it'll do the trick.
1000mAh is very low for this size battery though.
It makes the "Duracell 10kw power wall" for only $312.5, if you can find enough stock.
Sorry, my mistake, didn't notice it's 2PK for 10 cents, so it's $156 (half price) for "Duracell 10kw power wall", and it beats "Tesla power wall" in second.
Wow, love this comment
LiFePO4 is a very stable and safe chemistry, and still good for >80% of it's charge after 2000 recharges.
Yes, this is why it stated "solar". but I am not sure is this good for normal use (torch, toy etc.)?
Probably won't work well in devices designed for standard li-ion batteries, as these batteries have a substantially lower voltage - lower than a dead-flat li-ion battery.
Any suggestions on chargers guys? checked ebay but wasn't sure about generic ones…
I suppose most of 18650 charger can work property for 18500 if charge's negative plate can slide on battery slot.
Nitecore D4 is a good charger, and it says it supports LiFePo4 batteries. It's also a good charger for li-ion batteries and NiMh batteries.
I'm not sure if the D4 will automatically select the correct charge algorithm for these batteries, you may have to press buttons to set the battery type to LiFePo4.
Thanks mate
Yeah nitecore looks good. I'm looking into i4, that's bit cheaper. Liitokala is another option.
Cheers
Has anybody spotted these in other stores?
Please commend below if you have any suggestion.
As these batteries are 50mm long, they can be used in place of alkaline C-cell batteries in some situations. Because their voltage is higher though, each of these batteries will replace TWO alkaline batteries. So, for example, if you have a doorbell that takes two alkaline batteries, you can fit one of these batteries, and in the other battery position you put something conductive - stacked rare-earth magnets work if you have them, but aluminium foil wrapped over a battery-size block of wood works pretty well too.
Note also that these batteries are thinner than C-cells, depending on your battery holder you may need to bulk them up by wrapping with many layers of tape or similar. And the positive pip may not protrude, it may be flush with the top of the battery, which can be a problem with some battery holders.
These batteries are a different voltage to "standard" lithium-ion batteries - they stay at 3.2V over most of their discharge, but they are 3.65V fresh off the charger. This is higher than you would get with two alkaline batteries, but most devices can handle the higher voltage. If you were to install two fresh lithium (non-rechargeable) batteries, you would have 3.4V, also higher than the 3.0V you would get with two alkaline batteries, but I haven't heard of anything being damaged by lithium batteries.
These batteries are easily damaged. Wikipedia says "…a protection system also needs to be implemented to ensure no cell can be discharged below a voltage of 2.5 V or severe damage will occur in most instances."
If you're considering buying them, check to see if your charger can charge them. Many chargers can't handle them, they have to be charged differently to "standard" lithium-ion batteries.
The above comment is for the 18500 batteries, not the 14430 batteries.
Interesting find OP.
great for LED Cree torches
![[NSW] Duracell Solar Rechargeable Battery 2x 18500 or 2x 14430 for $0.10 @ Bunnings, Chatswood](https://files.ozbargain.com.au/n/95/406795.jpg?h=9b707931)
Make your own powerbank. Just need to find a Usb enclosure from Ebay or fasttech. The capacity of these cells are much smaller than average though
However you typically need cells without the protection circuit board for power banks, so perhaps just use it for Cree torches