Recent content by TinderBox (UK)

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  1. TinderBox (UK)

    Leaking IKEA Ladda AAA 900

    The only NiMh battery i have ever seem leak were some offbrand D cells, I have hundreds of AA, AAA and a dozen C and D and a few PP3(9V), they normally don't leak unless severely overcharged, especially with the smart chargers we have today. when i first started using rechargeable 30+ years...
  2. TinderBox (UK)

    Dangers of holding a flashlight in your mouth.

    I use to hold a 1xRCR123A flashlight in my mouth while i used both hands to search though boxes for years, risky i know. I now use a headlight that uses an single 18650 strapped to my forehead as it`s so much safer, LOL.
  3. TinderBox (UK)

    LiFePO4 dead cell recovery

    I picked out one of my small LiFePO4 and it was dead, totally out of energy, Since LiFePO4 cells should not vent with fire, I took the chance and recharged it and it got too hot to touch so i trashed it.
  4. TinderBox (UK)

    Lidl red Tronic battery test

    I bought a pack of 4x AAA Tronic ECO 950mah for £2.99 but i received results as show below. The first two tests were done with Refresh & Analyze Mode on my MAHA C9000 The third test was done in Break-In Mode (IEC capacity analysis that can take up to 45 hours on my MAHA C9000 1: 1st 791mah -...
  5. TinderBox (UK)

    Lidl red Tronic battery test

    The previous Tronic 2400 were poor quality, I never bought any but you can see a discussion in the link below, They only weighed 74g for 4 when these new 2400 weight 120g for 4 that's a hell of a weight increase and explains the new excellent capacity...
  6. TinderBox (UK)

    Lidl red Tronic battery test

    Just bought a pack of Tronic ECO 2400mah AA cells from Lidl for £2.99 for a pack of 4 The battery`s are dated 12/2020 I did a charge/discharge cycles on my MAHA C9000 with a charge rate of 1200ma 0.5C and a discharge of 600ma 0.25C First Charge Discharge Cycle 2605mah, 2609mah, 2625mah...
  7. TinderBox (UK)

    Ansmann Energy Check LCD - Professional Battery Tester

    14 years since i started this thread, My latest battery tester is the "Dlyfull Universal Battery Tester with LCD Display" These are sold by more sellers than Amazon and i do not make anything by you clicking on this link. https://www.amazon.co.uk/dp/B081JJ8Z5R/
  8. TinderBox (UK)

    Possible bans on bare Li-ion cells coming (all communities affected)

    Vapers should use Lifepo4 cells, Having a virtual bomb so close to your face, eeeekkk.
  9. TinderBox (UK)

    Can the Opus BT3100 v2.2 charge 21700 Li-ion Batteries

    From the review below "The charger uses the classical slider construction to handle most battery sizes. The slider works smoothly and can handle sizes from 32 mm to 72.5 mm. For measuring internal resistance the slider is not very good, it often has a "high" connection resistance."...
  10. TinderBox (UK)

    Can the Opus BT3100 v2.2 charge 21700 Li-ion Batteries

    I charged an unprotected one in my "Opus BT3100 v2.2" the other day, Though an protected one might not fit due to the extra length, I dont have one to measure. John.
  11. TinderBox (UK)

    Recommended best 21700 for my new purchase?

    I am looking for some 4800-5000mah 21700 in the UK for my new flashlight but everyone is out of stock, I am having problems even finding 18650 to 21700 adaptor tube, Might have to use O-rings. A lot of 21700 seem to come from Tesla or other electric car battery`s, The Tesla ones are a pain to...
  12. TinderBox (UK)

    Chargie A-Finally A USB Charge Controller With Phone Programmable Charging Parameters

    Been using an software alarm when the charging hits 80% for over 10 years and it`s been working fine, I have many retired phones/tablet with still good battery`s This should have been hardware built in the phones by now as it`s been in notebooks for a few years and called a battery saver that...
  13. TinderBox (UK)

    Test/review of Charger Folomov A4

    I ordered one of these only £20 at the moment, and it come with an nice 12v 5amp psu. I have had some C 5000mah battery hitting 60C when charging and i had to stop the charge. Also some lifepo4 280mah charging at 250ma the voltage is rising to 4.2v even though it was lifepo4 on the display...
  14. TinderBox (UK)

    Tenergy: QC and general mysteries

    Buy Eneloop if you have the money as they cannot be beat. If i need a load of battery`s i buy the cheap Tronic brand sold by Lidl, I must have like 50 mixes of AA, AAA and D and i have been buying them for over 10 years and i still have 8 RED label Tronic AA 2000mah that are 10 year old and...
  15. TinderBox (UK)

    Xtar VC4S - How concerned should I be about the automatic current selection?

    I was trying to avoid charger with automatic current selection and no manual current override, I ordered an Xtar VC2 Plus and they sent my two VC2S, must be buy one get one free.
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