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♫ Antti Luode – Echos
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IMPORTANT: reverse (!) the polarity of the 4 diodes in the ZENER row, I made a mistake! Sorry for that.
How to keep old 2000’s etc digital cameras in function.
Some of them have extremely good properties, like the Pentax Optio E 30, say from 2006-2008, but that Pentax was brought to early on the market in Europe.
With (even) two 2300 mA-Hour Nickel Cadmium batteries that Pentax Optio E 30 could only work for 10 Minutes or so, that is a classic manufacturer failure.
Anyway: that does not have to do anything (!) with their extremely good lenses and high-tech light-sensitive and high resolution photonic chips/sensors.
Often (say) in the past 4 or 7 Mega pixels, but with a high resolution…. Sometimes better than modern (2019) camera’s, though I have to say that the camera lens & photonic chips developments of the past years are immense (2013-2019).
So here I give a solution/idea for these old HQ camera’s: mount a (quite) fierce battery of 2,4 Volt that can give out a current of (say) 500 mA or 1 Ampère at 2,4 Volts during a few (or 1, or 2) hours.
Could be that other 2000’s camera’s need a higher or other supply voltage/current, the principles stay the same. When their supply batteries/accumulators are no longer available: make them!
Good for the environment to NOT through these camera’s away.
With a good battery the camera can/will work properly again for many hours/years.
The charger in case of the Pentax Optio E 30 can be (was) simple: the 4 normal Silicon power diodes (0,7-0,8 V barrier voltage), all in a row, parallelled to the 2,4 Volt (2000 mA – Hour) Ni Cad batteries act as a “zener” diode, that limits the charge voltage to (say) 4 x 0,7 V = 2,8 Volt or somewhat higher, with a sure effect on the charge current, given the situation that the Ni Cad cells can be charged to max. 1,3 up to 1,6 V.
The series diode (“3 A” in the drawing) prevents that the NiCad cells discharge “over” the charger unit.
Chargers for higher voltage for 1990’s camera’s can be made due to the same principles: study the datasheet of the used accumulator, replace it with simple NiCad batteries, if necessary as a kind of “block battery” outside the camera. Does not look nice and looks unprofessional, but who looks at it that way?
Use the “blocking” diode (any Si diode of say 300 V and 5 Amp will do the job) to prevent discharging of the batteries over the “charger” unit.
Even with a too high charge voltage/current (of course within limits, don’t go higher than say 18 Volts, check the charge current and charge voltage with the appropriate Amp. and Volt meters) that zener acts as a voltage and (thus) current current limiter to these 2,4 V/2200 mA-hour Ni Cad cells.
Best idea: slowly charge them to their peak. Of course: standard charge situation is 1/10 x the capacity, so here: 220 mA during 10 Hours (Ni Cad cell = 2200 mA/per hour) .
The Si diodes (“zeners” and blocking diode) can get warm or even hot, but they protect the two Ni Cad cells by limiting the voltage to them.
Do not over-charge NiCad cells, switch the charger “off” (time clock, for a few Euro’s to buy everywhere) when the NiCad cells are charged completely ofter complete depletion, or other wise (half depleted = half time).
With completey depleted NiCad cells the charge time can be calculated. 1/10 of the Ampère hour for which the NiCad cells were made is is normally safe, so a 2200 mA/hour Ni Cad cell needs 1/10 x 2200 mA/Hour = 220 mA charge current during during 10 hours).
All the videos hat I have published on You Tube can be found via my Channel Trailer: Link is
In thematic order you can find these video’s under the “comments” section.
Important: to find all the links to the (+/-700) video’s on my YT Channel, select, in the comments section, “NEWEST FIRST”
My books about electronics are available via the website from “Lulu”, search for author “Ko Tilman” there.
There is an important video via which you can buy a document where I give links to many of my video’s, published between 2010 and 2018.
Link is: https://youtu.be/XXRsA24NUE0
My books are also available via Barnes and Noble and via Amazon.
Regarding all my video’s: I constantly keep them actual, so the original video’s with the most recent information are always on YouTube. That is the source, and search there. When my video’s are reproduced or re-edited on other websites/channels you can not (!) be sure about the original content (=really working electronics) and important adaptations to the circuits.
Be aware of that, I saw on the internet my circuits reproduced in a poor or even not proper way. I can not help that, sorry. Update 16 June 2019.
This video is an attribute to the many environmental questions, nowadays, say 16 June 2019.
Cristec YPower Battery Chargers are ideal for caravans and boats, working silently with fanless operation, and highly efficient charge cycle and temperature control. Available at AMI, contact your local branch for more information.
Here are 10 common LiPo mistakes we’ve seen and the remedies behind them.
For safe disposal Information, as well as general LiPo safety precautions, check out the ProTek R/C LiPo Battery Manual here: https://images.amain.com/images/manuals/Li-Poly%20Battery%20Manual.pdf
This is a must have item for any r/c enthusiast, the XBC100 Cell Checker: https://www.amainhobbies.com/spektrum-rc-xbc100-smart-battery-checker-servo-driver-spmxbc100/p892935?utm_source=youtube&utm_medium=description
This is one of the safest LiPo cases out there: the BatSafe LiPo Charging Case: https://www.amainhobbies.com/batsafe-lipo-charging-case-bts-bat-safe/p698675?utm_source=youtube&utm_medium=description
One of the slickest Battery Dischargers on the market: the SkyRC 30 Amp LiPo/NiMH Battery Discharger: https://www.amainhobbies.com/skyrc-bd200-30-amp-lipo-lihv-nimh-battery-discharger-analyzer-30a-200w-skybd200/p846308?utm_source=youtube&utm_medium=description
Need a budget friendly LiPo Balance Charger: https://www.amainhobbies.com/protek-rc-prodigy-610ez-ac-dc-lihv-lipo-balance-battery-charger-6s-10a-100w-ptk-8522/p696353?utm_source=youtube&utm_medium=description&utm_content=/protek-rc-prodigy-610ez-ac-dc-lihv-lipo-balance-battery-charger-6s-10a-100w-ptk-8522/p696353
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This is our Ryobi Tolls haul from the Ryobi Days 2019 sale at Home Depot. Here we review the the Ryobi battery charger kit and the Ryobi Leaf Blower we got free in this buy one get one free tool sale. The Ryobi Days 2019 sale worked like this: You buy the Ryobi 18 V battery charger kit for $99, and you get one other Ryobi tool free. This is the Ryobi one plus battery system of Ryobi cordless tools. While shopping at Home Depot looking for Home Depot Discounts, we saw this Ryobi Days Home Depot discounts, and took the bait. this case, we chose the Ryobi 18V Compact Blower tool. So get on your phone and search for a Home Depot Near Me and get down there before the Ryobi sale ends on June 19.
20 Amperes (10 Amperes per bank) Smart On-Board Battery Charger for 12-volt batteries; charges and maintains all types of lead-acid batteries from 25-230Ah, including Wet, Gel, MF, and AGM
Designed for safety; safe for anyone to use; does not generate sparks, and protects against reverse battery hookup, short circuit, open circuit, overheat, overcurrent and does not overcharge the battery
100 percent waterproof; completely sealed to protect against the most extreme environments and rated at IP68
Rapid Charging Technology
The on-board battery charger offers the perfect mix of high-technology and rugged construction. With a fully-sealed, waterproof housing, the GEN1 can be mounted directly onto a variety of applications including boats, tractors and a wide range of equipment.
“Subliminal Audio Messages Can Program Your Subconscious Mind ”
https://www.amazon.com/dp/B010BFHORK?tag=yive-20 – BLACK+DECKER 20V MAX Lithium Battery Charger, 2 Amp (BDCAC202B)
Recharges batteries in 45 minutes or less Multi-volt charging lets you charge 16-volt Max and 20-volt Max batteries 2.0 Amp Output Lithium Ion
Upgraded chip (very similar to AirPods)
Drastically improved bass/sound quality
Touch control, no more buttons
Wireless charging case (see picture)
USB Type-C charging port
Supports phone calls from both earbuds simultaneously
No video latency
Waterproof, great for exercising
Battery level indicators on charging case
New Battery Charger & Maintainer from 1AAuto.com http://1aau.to/ia/1ABHD00026
In this video, 1A Auto reviews a Schumacher Battery Maintainer 1.5 Amp available on 1aauto.com
🔧 List of tools used:
• No Tools Needed
For More Info visit us at http://1aau.to/h/bwx/
While 1A Auto strives to make the information provided in this video as accurate as possible, it makes no claims, promises, or guarantees about the accuracy, completeness or applicability of the content. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. All do-it-yourself projects entail some risk. It is the sole responsibility of the viewer to assume this risk. 1A Auto is not responsible or liable for any loss damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video.