usb battery charger for D-Li90 (pentax K1).

hansenn · 11-30-2016, 02:47 PM

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I,m searching for an usb powered type of battery charger for D-Li90 batteries for my pentax K1.
I found this one but I,m not sure about it.

PATONA Synchron USB Charger f. Pentax D Li90 D-Li90 with LCD - Batterijen, accu's, opladers vindt u bij Accubat.nl

My original D-BC90 charger has 3 contacts, just like my original D-Li90 battery. But I only see 2 contacts on the patona charger.

**UncleVanya** · 11-30-2016, 03:07 PM

Most 3rd party chargers only have 2 contacts in my experience. The third pin is typically a temperature probe which is used to help the charger know what the state of the battery is. I have read various things about this and most indicate the two pin chargers can shorten battery life over time but they are fine for occasional use.

Adam · 11-30-2016, 03:24 PM

I wouldn't recommend this as the original charger is specially designed to charge the battery properly. Slowly but surely!

**lithedreamer** · 11-30-2016, 03:26 PM

Originally posted by Adam

I wouldn't recommend this as the original charger is specially designed to charge the battery properly. Slowly but surely!

Is there a good way to adapt the original charger for use with USB? My main concern is convenience and portability (while still keeping my batteries safe), rather than speed.

hansenn · 11-30-2016, 03:33 PM

Originally posted by lithedreamer

Is there a good way to adapt the original charger for use with USB? My main concern is convenience and portability (while still keeping my batteries safe), rather than speed.

good one

JENSEN7474 · 11-30-2016, 04:15 PM

Originally posted by hansenn

I,m searching for an usb powered type of battery charger for D-Li90 batteries for my pentax K1.
I found this one but I,m not sure about it.

PATONA Synchron USB Charger f. Pentax D Li90 D-Li90 with LCD - Batterijen, accu's, opladers vindt u bij Accubat.nl

My original D-BC90 charger has 3 contacts, just like my original D-Li90 battery. But I only see 2 contacts on the patona charger.

The best option for mobile charging,(get a 12vDC inverter to 110ac for the car) which is what you want or you can just wait till you get back to the house or hotel.

**lithedreamer** · 11-30-2016, 04:26 PM

Originally posted by JENSEN7474

The best option for mobile charging,(get a 12vDC inverter to 110ac for the car) which is what you want or you can just wait till you get back to the house or hotel.

Does 110ac fit into a laptop?

See, I want a backup to my batteries when doing long exposures. I guess I could haul a huge battery/generator on my back since I already have a K-1 dc cable, but... I'm hiking here.

jimr-pdx · 11-30-2016, 04:30 PM

I bought this one, works fine so far & very convenient. I hope to try using my double solar panel to see if it can sufficiently charge using this.. once the sun gets strong again.

USB Battery Charger for PENTAX D-BC90 D-LI90 K-01 K-3 K-5 K-5 II K-5 IIs K-7 US | eBay

Not a Number · 11-30-2016, 07:46 PM

Looks like it only has two pins.

hansenn · 12-01-2016, 12:45 AM

I need the possibility to charge my battery with a powerbank when I,m in the field. That's my main purpose. Or in the car when I,m on the way to another location.
Less important is that It shortens the lifespan of the battery. I,ve seen "good" non-branded batteries for less than $20

I think I will give it a try

hansenn · 12-01-2016, 03:41 AM

I ordered this one:

CONENSET D LI90 D LI90P Acculader voor Pentax K 01 K 1 K 3 K 7 K 5 II IIs 645Z 645D Camera en voor PENTAX D LI90/PBattery in dit een Usb-oplader, U ontvangt 1 ST USB Charger + 1 ST Micro Usb-kabel.Informatiom voor Lader:naam Product: USB Acculad van

If it doesn't do the job I will throw it out of the window for that price

**bwgv001** · 12-01-2016, 03:13 PM

with this
https://www.amazon.com/Powerextra-Pentax-Replacement-Battery-Charger/dp/B00S...+charger&psc=1
you might be able to hook up an anker battery that offers 12V output as well. conversion obviously takes place in the charger, since it also can use the car voltage.
one example is here:
https://www.amazon.com/XTPower-MP-10000-External-10000mAh-included/dp/B00935...ery+12V+output
I believe they also have larger (20000mAh) units. this should last a few battery chargers (about 2000mAh)

**lithedreamer** · 12-01-2016, 03:24 PM

Originally posted by bwgv001

with this
Amazon.com: Powerextra 2 PCS Pentax D-LI90 Replacement Li-ion Battery + Charger For Pentax 645D, 645Z, K-01, K-3, K-5, K-5 II, K-5 IIs, K-7: Cell Phones & Accessories
you might be able to hook up an anker battery that offers 12V output as well. conversion obviously takes place in the charger, since it also can use the car voltage.
one example is here:
Amazon.com: XTPower MP-10000 External Battery Pack with 10000mAh using dual USB 5V and DC 9V / 12V 2A output for many devices. Wall and Car Charger included.: Cell Phones & Accessories
I believe they also have larger (20000mAh) units. this should last a few battery chargers (about 2000mAh)

Looks like it's also missing that third 'safety pin', as all the other third-party chargers have so far, in this thread.

Adam · 12-02-2016, 02:31 AM - **1 Like**

Originally posted by lithedreamer

Does 110ac fit into a laptop?

See, I want a backup to my batteries when doing long exposures. I guess I could haul a huge battery/generator on my back since I already have a K-1 dc cable, but... I'm hiking here.

Carrying extra batteries for long trips would probably be the best solution, IMO.

hansenn · 12-02-2016, 07:57 AM

Right Adam, but for me I'm always searching for the cheapest solution

11-30-2016, 02:47 PM	#1
hansenn Senior Member Join Date: Jan 2011 Location: twente Photos: Gallery Posts: 123	usb battery charger for D-Li90 (pentax K1). Staff note: This post may contain affiliate links, which means Pentax Forums may earn a small commission if a visitor clicks through and makes a purchase. If you would like to support the forum directly, you may also make a donation here. I,m searching for an usb powered type of battery charger for D-Li90 batteries for my pentax K1. I found this one but I,m not sure about it. PATONA Synchron USB Charger f. Pentax D Li90 D-Li90 with LCD - Batterijen, accu's, opladers vindt u bij Accubat.nl My original D-BC90 charger has 3 contacts, just like my original D-Li90 battery. But I only see 2 contacts on the patona charger.

11-30-2016, 03:24 PM	#3
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,595	I wouldn't recommend this as the original charger is specially designed to charge the battery properly. Slowly but surely! Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

12-02-2016, 02:31 AM - 1 Like	#14
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,595	Originally posted by lithedreamer Does 110ac fit into a laptop? See, I want a backup to my batteries when doing long exposures. I guess I could haul a huge battery/generator on my back since I already have a K-1 dc cable, but... I'm hiking here. Carrying extra batteries for long trips would probably be the best solution, IMO. Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

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11-30-2016, 03:07 PM	#2
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,404	Most 3rd party chargers only have 2 contacts in my experience. The third pin is typically a temperature probe which is used to help the charger know what the state of the battery is. I have read various things about this and most indicate the two pin chargers can shorten battery life over time but they are fine for occasional use.

11-30-2016, 03:26 PM	#4
lithedreamer Site Supporter Join Date: Sep 2013 Photos: Gallery \| Albums Posts: 1,799	Originally posted by Adam I wouldn't recommend this as the original charger is specially designed to charge the battery properly. Slowly but surely! Is there a good way to adapt the original charger for use with USB? My main concern is convenience and portability (while still keeping my batteries safe), rather than speed.

11-30-2016, 03:33 PM	#5
hansenn Senior Member Join Date: Jan 2011 Location: twente Photos: Gallery Posts: 123 Original Poster	Originally posted by lithedreamer Is there a good way to adapt the original charger for use with USB? My main concern is convenience and portability (while still keeping my batteries safe), rather than speed. good one

11-30-2016, 04:15 PM	#6
JENSEN7474 Junior Member Join Date: Mar 2016 Location: New Jersey Posts: 38	Originally posted by hansenn I,m searching for an usb powered type of battery charger for D-Li90 batteries for my pentax K1. I found this one but I,m not sure about it. PATONA Synchron USB Charger f. Pentax D Li90 D-Li90 with LCD - Batterijen, accu's, opladers vindt u bij Accubat.nl My original D-BC90 charger has 3 contacts, just like my original D-Li90 battery. But I only see 2 contacts on the patona charger. The best option for mobile charging,(get a 12vDC inverter to 110ac for the car) which is what you want or you can just wait till you get back to the house or hotel.

11-30-2016, 04:26 PM	#7
lithedreamer Site Supporter Join Date: Sep 2013 Photos: Gallery \| Albums Posts: 1,799	Originally posted by JENSEN7474 The best option for mobile charging,(get a 12vDC inverter to 110ac for the car) which is what you want or you can just wait till you get back to the house or hotel. Does 110ac fit into a laptop? See, I want a backup to my batteries when doing long exposures. I guess I could haul a huge battery/generator on my back since I already have a K-1 dc cable, but... I'm hiking here.

11-30-2016, 04:30 PM	#8
jimr-pdx Pentaxian Join Date: May 2010 Location: now 1 hour north of PDX Photos: Gallery \| Albums Posts: 3,897	I bought this one, works fine so far & very convenient. I hope to try using my double solar panel to see if it can sufficiently charge using this.. once the sun gets strong again. USB Battery Charger for PENTAX D-BC90 D-LI90 K-01 K-3 K-5 K-5 II K-5 IIs K-7 US \| eBay

11-30-2016, 07:46 PM	#9
Not a Number Moderator Join Date: Mar 2012 Location: Venice, CA Posts: 10,526	Looks like it only has two pins.

12-01-2016, 12:45 AM	#10
hansenn Senior Member Join Date: Jan 2011 Location: twente Photos: Gallery Posts: 123 Original Poster	I need the possibility to charge my battery with a powerbank when I,m in the field. That's my main purpose. Or in the car when I,m on the way to another location. Less important is that It shortens the lifespan of the battery. I,ve seen "good" non-branded batteries for less than $20 I think I will give it a try

12-01-2016, 03:41 AM	#11
hansenn Senior Member Join Date: Jan 2011 Location: twente Photos: Gallery Posts: 123 Original Poster	I ordered this one: CONENSET D LI90 D LI90P Acculader voor Pentax K 01 K 1 K 3 K 7 K 5 II IIs 645Z 645D Camera en voor PENTAX D LI90/PBattery in dit een Usb-oplader, U ontvangt 1 ST USB Charger + 1 ST Micro Usb-kabel.Informatiom voor Lader:naam Product: USB Acculad van If it doesn't do the job I will throw it out of the window for that price

12-01-2016, 03:13 PM	#12
bwgv001 Site Supporter Join Date: Aug 2015 Location: Alabama Photos: Gallery Posts: 697	with this https://www.amazon.com/Powerextra-Pentax-Replacement-Battery-Charger/dp/B00S...+charger&psc=1 you might be able to hook up an anker battery that offers 12V output as well. conversion obviously takes place in the charger, since it also can use the car voltage. one example is here: https://www.amazon.com/XTPower-MP-10000-External-10000mAh-included/dp/B00935...ery+12V+output I believe they also have larger (20000mAh) units. this should last a few battery chargers (about 2000mAh)

12-01-2016, 03:24 PM	#13
lithedreamer Site Supporter Join Date: Sep 2013 Photos: Gallery \| Albums Posts: 1,799	Originally posted by bwgv001 with this Amazon.com: Powerextra 2 PCS Pentax D-LI90 Replacement Li-ion Battery + Charger For Pentax 645D, 645Z, K-01, K-3, K-5, K-5 II, K-5 IIs, K-7: Cell Phones & Accessories you might be able to hook up an anker battery that offers 12V output as well. conversion obviously takes place in the charger, since it also can use the car voltage. one example is here: Amazon.com: XTPower MP-10000 External Battery Pack with 10000mAh using dual USB 5V and DC 9V / 12V 2A output for many devices. Wall and Car Charger included.: Cell Phones & Accessories I believe they also have larger (20000mAh) units. this should last a few battery chargers (about 2000mAh) Looks like it's also missing that third 'safety pin', as all the other third-party chargers have so far, in this thread.

12-02-2016, 07:57 AM	#15
hansenn Senior Member Join Date: Jan 2011 Location: twente Photos: Gallery Posts: 123 Original Poster	Right Adam, but for me I'm always searching for the cheapest solution