fourwed
Head-Fier
- Joined
- Feb 13, 2010
- Posts
- 94
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- 11
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quite frankly, I really wouldn't advise to use no-name chinese batteries: http://www.nikonusa.com/Service-And-Support/Service-Advisories/h0ndzaip/EN-EL15-Battery-Recall-Service-Advisory.html
even those that went through the QA of serious manufacturers can give problems, so no-name stuff on ebay directly shipped from China? hummm.
Kingwa also provides a killer looking Class-A PSU with 0.3mV ripple for pretty cheap, sounds good to me..no overheating issue, no flat batteries, very low ripple = win win
These batteries are only assembled in China but the battery is made by SANYO. It is only 18650, a very standard battery in many hand torches and notebook batteries. It should be of very good quality if it is not fake.
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Yes, I ordered a 5200 mAh and a charger with protection circuitry from the same seller for $49.90 total. I'm planning to see how it works and post results with the DI and then again when I get my DI-V21.
Kingwa must be talking about some low capacity batteries or something when he says you can find them with charger for $15. There's about an $8 premium for the barrel connectors from what I've seen comparable battery packs selling for with bare wire ends. I think that's a pretty fair price to pay regardless, and $50 is less expensive than the power supply anyway.
Edit: I wonder if the Olimex Isolator will work with the DI-V21 (at 24/96 and lower, anyway).
Kingwa must be refering the price in China. It is not as expensive as in USA.
As for the DI, overvoltage is a problem and it might damage the DI; undervoltage will just not having enough power to power up the DI. However, an undervoltage lithium battery will be permanent damaged and might swell. It is advised not to wait until the battery are all used up, unless using protected battery like you.
7.4V is because 1 cell battery is 3.7V, 2 cell is 7.4V. You will not find any Lithium battery has a lower or higher voltage. As a matter of fact, a full charge 7.4V battery is about 8.4V, you could verify it with a multimeter. I am thinking using common AA battery will do the same trick, chargeable or alkaline, but I might be wrong.
It is labelled on the old DI that it uses 300mA. I think a 5200mAh battery will drive around 13 hours.
My battery powered DI has given me some problems. For example, there is no sound / cracking sound if I use the battery sometimes. What I did is unplug everything and wait for a minute or two, then reconnect them again. I hope you will not have problems like me and I will ask Kingwa why?
Please compare the battery powered DI with Audio-gd's PSU if you have one, thx.
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are you going to order one?
i've got the old PSU at the moment, so i'll get batteries only if they will be reported as an improvement by someone like you
kr0gg, please do not try battery powered DI. It is too risky and complicated for someone like you