May 25, 20224 yr I have one of these magneto rechargeable led lanterns. https://www.tevo.co.za/shop/outdoor/torches/magneto-rechargeable-led-lantern/?gclid=CjwKCAjwp7eUBhBeEiwAZbHwke7yNbRFiGNaq5BUzGS9jnMSBP0bbjqjeD-zhd72zubxwMrOc9OA-xoCHQgQAvD_BwE It was really good at first but after a few months of usage with load shedding I can see it gets dim very quickly and does not last as long as it used to. Inside is a normal lead acid 6v 4ah battery. This battery is obviously not meant for repeated charging and discharging and I am looking for somethng to replace it with. I think a lithium battery may be the best option. Has anyone replaced the battery on these with a lithium battery and what has been your experience? Is the built in charger able to charge a lithium battery? Would an 18650 battery work here?
May 26, 20224 yr On 2022/05/25 at 11:39 AM, Vin said: I have one of these magneto rechargeable led lanterns. https://www.tevo.co.za/shop/outdoor/torches/magneto-rechargeable-led-lantern/?gclid=CjwKCAjwp7eUBhBeEiwAZbHwke7yNbRFiGNaq5BUzGS9jnMSBP0bbjqjeD-zhd72zubxwMrOc9OA-xoCHQgQAvD_BwE It was really good at first but after a few months of usage with load shedding I can see it gets dim very quickly and does not last as long as it used to. Inside is a normal lead acid 6v 4ah battery. This battery is obviously not meant for repeated charging and discharging and I am looking for somethng to replace it with. I think a lithium battery may be the best option. Has anyone replaced the battery on these with a lithium battery and what has been your experience? Is the built in charger able to charge a lithium battery? Would an 18650 battery work here? 18650 will not work. They are 8.4V when 2 are fully charged. It seems a bit high. These will be more suitable but one would have to check what the max charger volts of the Magneto is. Google for Elektromann 32650 battery.
May 27, 20224 yr No, you cannot use a Lithium battery with this lantern. The charging circuit is a resistor - you will kill the battery in no time. If you really want to do it, using a power bank is your safest bet (for charging, converting to 5V and switching off when the battery is empty). You will still require a way to limit the current to the LEDs - this lantern uses a resistor for lower levels and relies on the internal resistance of the battery for full power.
July 20, 2025Jul 20 On 2022/05/27 at 3:18 PM, P1000 said:No, you cannot use a Lithium battery with this lantern. The charging circuit is a resistor - you will kill the battery in no time. If you really want to do it, using a power bank is your safest bet (for charging, converting to 5V and switching off when the battery is empty). You will still require a way to limit the current to the LEDs - this lantern uses a resistor for lower levels and relies on the internal resistance of the battery for full power.I have a bunch of 3.7v lithium vape cells and i have a bms for it will it work?
May 2May 2 I found this site would this work Security and More (Moni Shanti CC)GD Lighting Battery 6V 4AH Sealed Lead-Acid Battery (Repl...Batteries for gate motors, alarm systems and CCTV Also excellent for General Purpose Electronics, Security Systems, Rechargeable Electronics, Computer Battery Back-up Systems (UPS), Portable Power Sup
May 12May 12 Author On 2026/05/02 at 11:33 AM, Moodswing said:I found this site would this workSecurity and More (Moni Shanti CC)GD Lighting Battery 6V 4AH Sealed Lead-Acid Battery (Repl...Batteries for gate motors, alarm systems and CCTV Also excellent for General Purpose Electronics, Security Systems, Rechargeable Electronics, Computer Battery Back-up Systems (UPS), Portable Power SupThanks. I posted this in 2022. I was looking for a replacement for the lead acid battery which this one is as well. These are not meant for repeated charging and discharging. I bought the lithium ion battery version of the same thing since then.
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