| Author: | |
Site Supporter Registered: April, 2015 Posts: 3,520
3 users found this helpful
| | Review Date: June 25, 2021 | Recommended | Price: None indicated
| Rating: 10 |
| Pros: | The only "protected" and long lasting battery! | | Cons: | cost | |
This is the only battery one actually should use.
Not only because they last much longer (I have early ones manufactured in 2010, i.e. now 11 years old and they still work!) but because of security!
Avoid any clones!
The original Pentax D-LI90 (as well as the D-LI109) has a
10kOhm@20°C NTC temperature sensor!
ALL clones use a simple 10kOhm resistor to cheat the original Pentax charger which would otherwise not charge it!
All clone-chargers no matter which one lack the (obligatory) 3-rd contact for temperature control!
They use the obligatory centertap for voltage-monitoring and have the obligatory surge-protection.
Thats the cheap way and in the clones surge-protection is done usually just with an 8-leg double MOSFET which shuts off PLUS in case of a too high surge.
Hardly any of the clones use a polyswitch (resettable fuse, i.e. a polymeric positive temperature coefficient device = PPTC) which anyway is quite slow in reaction but at least better than nothing.
All this cheap stuff you won't find in Pentax originals because of their much more advanced temperature NTC sensor.
| |
| |
| | |
Veteran Member Registered: September, 2017 Location: Medellín Posts: 1,322
2 users found this helpful
| | Review Date: January 2, 2020 | Recommended | Price: $47.00
| Rating: 10 |
|
I bough three more since I got my K-5 in 2012. Cycle through the four of them regularly to keep them alive and they are still going strong. I also clean the contacts from time to time.
| |
| | |
Veteran Member Registered: September, 2013 Posts: 306 | | Review Date: September 22, 2013 | Recommended | Price: None indicated
| Rating: 10 |
| Pros: | Best camera battery for k5 | | Cons: | None | |
Better than other brands, more power, af works better with this original battery!
| |
| | |
Pentaxian Registered: January, 2011 Location: Skåne, Sweden Posts: 482
3 users found this helpful
| | Review Date: April 18, 2013 | Recommended | Price: None indicated
| Rating: 10 |
| Pros: | Great battery life in the K-5 | | Cons: | None | |
I write this review mostly to inform of some compatibility issues that I found after purchasing the K-01. There are two versions of this charger, the original called D-BC90 and a newer version called D-BC90P. The batteries are also updated with a "P" on the end, e.g. D-LI90P. The compatibility is as follows:
Old charger D-LI90 will only charge D-LI90
New charger D-LI90P will charge both D-LI90 and D-LI90P
There are plastic grooves on the D-LI90P battery which makes it impossible to even fit in in the older D-LI90 charger. My K-01 was supplied with the new charger and battery, my original K-5 came with the old charger and battery.
Apparently the new design has to do with Japanese safety regulations, discussed here
For the battery itself, I find that it will last pretty much forever in the K-5. If you don't use LiveView or flash it could take at least a thousand pictures in the K-5. I usually always charge at night when I can, so I've never been on any long hikes in the wild with the K-5, but I did shoot a wedding with a K-5 and the D-BG4 battery grip, with a total of 2 D-LI90. After the whole day and 500+ pictures neither battery has dropped from green (full charge). I couldn't ask any more of them.
| |
| |
| | |
Loyal Site Supporter Registered: March, 2007 Location: Toowoomba, Queensland Posts: 23,920 | | Review Date: April 19, 2012 | Recommended | Price: $50.00
| Rating: 10 |
| Pros: | Long lasting, durable | | Cons: | None | |
What to say about a battery that does its job without a hitch?
It works very well, has power that lasts and lasts.
Self-discharging is minimal and it recharges quickly.
Very good product.
| |
| | |
Forum Member Registered: June, 2011 Location: Australia Posts: 64 | | Review Date: March 17, 2012 | Recommended | Price: None indicated
| Rating: 10 |
| Pros: | It's for 4 pentax cameras. | | Cons: | Price locally | |
A battery the goes into K-7, K-5, 645D and now the new K-01. Perhaps the next new pentax DSLR to replace the K-5.
| |
| | |
Senior Member Registered: June, 2018 Posts: 131 | | Review Date: January 7, 2020 | Recommended | Price: None indicated
| Rating: 9 |
| Pros: | Hold charge well | | Cons: | Runs out eventually | |
Got one? Get another! I got a spare to shoot my brother’s wedding on my K3ii. Didn’t even need it. It’s lovely to be able to shoot with confidence like that.
| |
| | |
Closed Account Registered: March, 2015 Posts: 8,694 | | Review Date: October 24, 2016 | Recommended | Price: $75.00
| Rating: 9 |
| Pros: | Pentax brand is the best choice | | Cons: | Expensive in Australia | |
I have a K-3, and I find the original Pentax brand battery is much better than the no-name knock offs. I have the cheaper versions too, but the Pentax allows more photographs to be taken per charge IMO. I highly recommend getting the Pentax battery.
| |
| | |
Veteran Member Registered: June, 2012 Location: Boise Idaho Posts: 466 | | Review Date: December 31, 2013 | Recommended | Price: None indicated
| Rating: 9 |
| Pros: | Somewhat small, one way to feed (unlike USB), 1000 shots easy. | | Cons: | Price. | |
I purchased a k5 with extra batteries at BH photo video. Thought I was getting a good deal. I found out that the batteries they came with sucked! I can do maybe 25 -300 photos on each battery (they are flashpoint brand). I'm always happy when I put the Pentax battery in because I know it'll last
| |
| | |
Veteran Member Registered: July, 2010 Location: New York Posts: 1,071 | | Review Date: April 27, 2012 | Recommended | Price: $40.00
| Rating: 9 |
| Pros: | Excellent battery life, reasonably priced | | Cons: | Slow charging | |
Excellent battery life. It's not difficult to get some thousand shots on a single charge when used in the K-5. I would definitely recommend this over any third-party battery, since the genuine Pentax battery isn't that expensive. It does tend to be slow to charge (up to 6 1/2 hours!), however.
| |
| | |
Forum Member Registered: February, 2011 Location: SK, Canada Posts: 83 | | Review Date: July 14, 2011 | Recommended | Price: $37.99
| Rating: 9 |
| Pros: | It's an extra battery, it works | | Cons: | Price in Canada | |
My only issue with the battery is that the price in Canada is ridiculous. I bought the battery from a US seller for $37.99. The same battery in Canada is $99.99!!
| |
| | |
Site Supporter Registered: December, 2007 Location: Montreal Posts: 1,249 | | Review Date: August 24, 2011 | Recommended | Price: None indicated
| Rating: 8 |
| Pros: | Best performance, genuine | | Cons: | Price | |
Not much to say, that's the genuine battery for Pentax K-5 and K-7. It has a good capacity (and always better than the cheaper third-party even those that claim more capacity!) but is rather expensive.
Maybe it's the charger but it takes a very long time to charge to full capacity. Expect more than 6 hours the first time (the manual states 390 minutes for a fully depleted battery!). That's why you need absolutely a second battery (I have a generic for that purpose) or use the DBG4 battery grip that can use AA batteries.
| |
| | |
New Member Registered: May, 2010 Location: Ruurlo / The Netherlands Posts: 1 | | Review Date: June 12, 2011 | Recommended | Price: $30.00
| Rating: 8 |
| Pros: | The D-LI90 fits the K-7, K-5 and 645D | | Cons: | This is not a 'standard workhorse' like an AA / LR6 /Ni-MH cell | |
People who use a rugged, relatively light and small DSLR camera are often using other equipment (GPS, mobile phone, flash light, radio, etc.) too while 'travelling light'. In such an situation it is very effective and efficient to standardise at one or two rechargeable batteries.
The benefits are obvious:
- batteries can be used and exchanged between equipment;
- only one (solar!) recharger is needed (e.g. for AA and AAA);
- you need no bag full of different chargers (weight, volume, $);
- benefits for low cost high quality (2nd generation Ni-MH AA);
- setting your own priority (use your batteries where needed).
To compare:
1 D-LI90 battery delivers 7.2V - 1860 mAh - 77 gram;
6 AA Ni-MH cells deliver 7.2V - 2300 mAh - 170 gram.
The good news: The D-BG4 battery grip takes both AA cells or a D-LI90, so you can 'steal' your spare AA batteries to keep on taking pictures!
| |
;)
;)
