| General > General Technical Chat |
| What Ni-MH cells to buy? |
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| Miti:
+1 for white Ikea Ladda! |
| deadlylover:
+1 Can't beat the IKEA LADDA (made in Japan version) if they're available in your area. They used to be 8 dollarydoos here for a 4 pack, but the price has almost doubled recently. Should have loaded the boat while I could! The low capacity variants are quite good for things like game controllers or especially wireless mice because they're a bit lighter. Good to have a few of those around for special purposes, they're usually a decent chunk cheaper too. |
| VK3DRB:
Unless it is a genuine from a reputable manufacturer and dealer, the capacity and robustness (especially NiMH) can be treated with a grain of salt. eBay is flooded by batteries full of false capacity claims and counterfeits by Chinese fraudsters. In the end you get what you pay for. Genuine Ladda are great (I have used them) and of course genuine Eneloops (I have used them too). Just search on "NiMH battery" on eBay. All these AA NiMH batteries made by Hu Flung Dung Enterprises and the like with a capacity of 3000mAh are fake. Another big con is power bank capacities. Almost all state an Ah capacity that is either complete frogshit, or at best the Ah capacity from the 3.7V cells; not the 5V USB produced from a buck-boost converter. No user gives a rats arse about the Ah capacity of the cells. They are more interested in the Ah capacity of the 5V USB power, which takes into account cells as well as the voltage converter efficiency. This battery bank can provide the equivalent of 900 amps for one hour! Would make a great welder for under $25, except this works though wireless. You could modulate it with AM run your very own killowatt pirate AM radio station. At 900,000mAh, it will run an 5mA LED for over 20 years continuously. https://www.ebay.com.au/itm/900000mAh-Digital-Power-Bank-2USB-Backup-LCD-Battery-Charger-For-Mobile-Phone/353209661589?hash=item523cefb895:g:LRcAAOSwZbtfaEvu. eBay is full of fraudulent and non-safety compliant products out of China. eBay does not care, nor, sadly, does the government. It is a case of buyer beware. |
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