EBS_freak Posted August 25, 2019 Posted August 25, 2019 On 24/08/2019 at 19:14, Chienmortbb said: My Trustfire also measures a tad over 8.4V fully charged. Is this your Trustfire? Quote
EBS_freak Posted August 31, 2019 Posted August 31, 2019 Yes! 8.4v I shall post up with multimeter reading. Quote
EBS_freak Posted September 1, 2019 Posted September 1, 2019 I'm tempted to get 4 of these for my bass... certainly cheaper running LEDs on these than pretty much anything else I guess! Quote
stingrayPete1977 Posted September 1, 2019 Posted September 1, 2019 The battery in my jazz bass is behind the pickguard (as you know Russ), I could fit one of those and a USB port to charge the bass somewhere. Hhmmm 1 Quote
EBS_freak Posted September 2, 2019 Posted September 2, 2019 22 hours ago, stingrayPete1977 said: The battery in my jazz bass is behind the pickguard (as you know Russ), I could fit one of those and a USB port to charge the bass somewhere. Hhmmm Have you got a router bit for your dremmel? Talking of dremmels, I've got a project for soldering club I'm working on at the moment and could do with some box cutting advice! Sounds like a project night and pie outing! 1 Quote
stevie Posted September 2, 2019 Posted September 2, 2019 I suspect 8.4V is enough for most purposes. I wonder if the rechargeable lithium batteries last longer than non- rechargeable alkalines. It wouldn't surprise me. Quote
Chienmortbb Posted September 2, 2019 Author Posted September 2, 2019 26 minutes ago, stevie said: I suspect 8.4V is enough for most purposes. I wonder if the rechargeable lithium batteries last longer than non- rechargeable alkalines. It wouldn't surprise me. Hard to say as no manufacturer, that I know of, publishes battery capacity for non-rechargeable batteries. Quote
EBS_freak Posted September 2, 2019 Posted September 2, 2019 You may find this interesting... or not - https://www.powerstream.com/9V-Alkaline-tests.htm Quote
Sven Posted September 10, 2019 Posted September 10, 2019 The trustfire mentioned above looks interesting, I like the idea of charging them with a small USB port rather than having to buy a charger (I don't have any rechargeable batteries in the house yet so buying a bunch of these + a charger is a mess). Assuming they will rate at 8,4 V as mentioned above, did someone notice any effect on the instrument sound, preamp response, this kind of things? Quote
itu Posted September 10, 2019 Posted September 10, 2019 On 02/09/2019 at 14:51, stevie said: I wonder if the rechargeable lithium batteries last longer than non- rechargeable alkalines. The difference between primary and secondary battery is the discharge curve. Usually a rechargeable (secondary) cell has a curve, that looks a bit like a box: it can push lots of current and steady voltage but only a certain time and then the end comes very quickly. A common alkaline can push less current and the voltage curve is slowly descending. It is common that a primary cell has bigger capacity: it has not the space for the chemistry that is needed in secondary cells for recharging. So actually a bigger amount of energy in the same space. This text is a simplification but the basics are there. Quote
EBS_freak Posted September 10, 2019 Posted September 10, 2019 17 hours ago, Sven said: The trustfire mentioned above looks interesting, I like the idea of charging them with a small USB port rather than having to buy a charger (I don't have any rechargeable batteries in the house yet so buying a bunch of these + a charger is a mess). Assuming they will rate at 8,4 V as mentioned above, did someone notice any effect on the instrument sound, preamp response, this kind of things? No difference really - although the higher voltage may give you more headroom and better reproduction of transients. Anyway, the Trustfire appears to be good... although a tiny bit oversized. It will fit in the Gotoh battery boxes on my basses - but is defo a firm fit where other batteries will quite easily slip in and out. Not a real big issue really though! Quote
Bill Yellow Posted September 11, 2019 Posted September 11, 2019 Years ago I bought a couple of specialist over-voltage PP3 type rechargeables, along with the special charging station they needed. This was just to use in an A/B switching pedal. Unfortunately, in that application they were entirely inappropriate and drained down in less than an hour. ☹️ Quote
EBS_freak Posted September 27, 2019 Posted September 27, 2019 800mah... https://www.amazon.co.uk/Rechargeable-Keenstone-Lithium-ion-Self-Discharge-High-Energy-3-Pack-Charger/dp/B078JMHHF8/ref=sr_1_8?crid=2C6JBSA7K8QFN&keywords=usb+9v+battery&qid=1569517299&sprefix=usb+9v%2Caps%2C146&sr=8-8 Quote
EBS_freak Posted October 3, 2019 Posted October 3, 2019 (edited) On 27/09/2019 at 07:06, EBS_freak said: 800mah... https://www.amazon.co.uk/Rechargeable-Keenstone-Lithium-ion-Self-Discharge-High-Energy-3-Pack-Charger/dp/B078JMHHF8/ref=sr_1_8?crid=2C6JBSA7K8QFN&keywords=usb+9v+battery&qid=1569517299&sprefix=usb+9v%2Caps%2C146&sr=8-8 Crumbs. In a test side by side, these make the Trustfire performance look pants. They just keep going... and going... and going. I reckon these are a must for anybody with a LED fretlight fetish. edit - metered at 8.4v Edited October 4, 2019 by EBS_freak Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.