Put a18V FLAT Ozito battery on charger 2.25 hrs Now won’t work ?? Ideas? Please.
Welcome to the Bunnings Workshop community @Darcy9. It's wonderful to have you join us, and many thanks for your question about charging a battery.It sounds like either the battery or charger has failed. If the products are under warranty, I'd recommend returning to the store of purchase and having them take a look at them. If the products are out of warranty and you could provide the model number, then I can check to see if replacement part are available.
I'm sorry, but if the battery simply won't charge, I am not aware of any special tricks that will resolve that issue.Please let me know if you have any questions.Mitchell
Thanks Mitchell. Hopefully battery is ok I’m concerned it may have overcharged (just over 1hr) hopefully not the 18 volt drill almost 12 months old. Prob no more than 15 hrs use. Off to Bunnings tomorrow. 😬 Cheers Darcy
Morning @Darcy9
How did you get on back in February?
But I always thought Lithium doesn't deplete itself to death (from overuse)?
I thought that only happened with Nickel-cadmium?
And above, there is mention of overcharging Lithium batteries. I didn't think this possible, I thought they "trickled" at some point, when fully charged?
Cheers.
Hi @Noyade,
It's best to remove the battery from the charger as soon as it has fully charged.
Mitchell
Thanks @MitchellMc
Good to know. I have only a few battery tools - but I religiously charge them regularly.
Actually you can overcharge a Lithium battery, low tech (poor quality) chargers are the culprit usually feeding a higher voltage into the cells than manufacturers had intended, BMS (battery management systems) and Smart chargers minimise the risk significantly, the Ozito chargers fall into this category, I monitor battery use (with the inbuilt charge meter) and top up/charge the pack accordingly.
My charger is kept away from flammable materials and not left on charge beyond that normal cycle.
https://www.abc.net.au/news/2023-01-18/e-scooter-lithium-battery-fire-risk-fears-/101863902
Hi @DIYGnome,
I've edited my reply above as I was under the impression that most smart chargers cut the charge to the battery once they were fully charged, but that does not necessarily look to be the case across the board. Regardless, the manufacturers recommend the removal of batteries from the charger as soon as possible.
Do not over-charge batteries. Do not exceed the maximum charging times. These charging times only apply todischarged batteries. Frequent insertion of a charged or partly charged battery pack will result in over-charging andcell damage. Do not leave fully charged batteries in the charger. Overcharging batteries may result in a risk of fire.
Thanks for picking that up.
Hi all, has anyone had any issues with the Ozito Ultra 5.2 Ah batteries? I have three batteries (about two or three years old) over the space of two months that will not charge. The first of the three lights on the battery will only flash and battery will not charge. It seems to begin with the battery only charging to the second light and then in a short period will not charge.
Thanks Kevin.
Welcome to the Bunnings Workshop community @Kev1-Towns. It's great to have you join us, and many thanks for your question about Ozito batteries.I don't personally use the Ozito system, so I don't have any first-hand experience, though haven't fielded any enquiries with similar issues. However, I trust any of our members using the Ozito system will chime in if they've had the same problem.
You'll be pleased to know that there is a three-year warranty on the Ozito PXC range batteries. So, if you take them and your receipts into your local Bunnings store they'll be able to access them for warranty and swap them over.Please let me know if you have any questions.Mitchell
Hello @Kev1-Towns From what you have described it would appear the batteries are either reaching the end of their service life OR they have experienced charging issues which have had a compound effect over time.Smart chargers are great but it has been my experience that they are designed to not accept battery packs whose voltage has dropped below their designed "minimal acceptable" overall resting voltage, the battery management systems (BMS) integrated into the packs help to prevent over charging / discharging but a battery should NEVER be left in a low state of charge because whilst the discharge is lower for this type of chemistry (Lithium) is still occurs and once you reach that cut off voltage the Smart Charger will no longer work on that pack.
If still in the Warranty period, I would go that route 👍
Ozito 18v PXC Battery/Charger User Manual
https://delivery.bunningscontenthub.bunnings.com.au/api/public/content/83dcb3bee421443f912f9700b1930ac0?v=98a36945
"But I always thought Lithium doesn't deplete itself to death (from overuse)?" - NoyadeActually @Noyade lithium cells do have a limited number of cycles in their lifetime (300 - 500), as they age the capacity also reduces thus older well used batteries have a lower overall capacity and will reach an unserviceable voltage sooner than newer battery packs if left in a low state of charge, temperature also has an impact on battery cycle/health (further details in link below) 👍
https://batteryuniversity.com/article/bu-808-how-to-prolong-lithium-based-batteries#:~:text=For%20example%2C%20a%20lithium%2Dion,should%20provide%202%2C400%E2%80%934%2C000%20cycles.
Hi Mitchell, Thanks for the reply and I will check with my local Bunnings store later this week.
Hi DIYGnome, Great information on the batteries and charging systems. I use the batteries with the Ozito mower once a week, and I would have left the batteries charging until the next day. I will just have to remember to remove the batteries from the charger in future.
Thanks.
