![Working on an external power power supply for my Pentax 645. This is the first prototype! Total cost has been less than $20 which is a lot cheaper than buying an external Working on an external power power supply for my Pentax 645. This is the first prototype! Total cost has been less than $20 which is a lot cheaper than buying an external](https://preview.redd.it/working-on-an-external-power-power-supply-for-my-pentax-645-v0-xcwcjji0aro81.jpg?width=640&crop=smart&auto=webp&s=76d1cee0fe9f6c8ce2835f2d191bd7faba760e41)
Working on an external power power supply for my Pentax 645. This is the first prototype! Total cost has been less than $20 which is a lot cheaper than buying an external
![管26067マ PENTAX 645用 外部バッテリーパック REMOTE BATTERY PACK 645(アクセサリー)|売買されたオークション情報、Yahoo!オークション(旧ヤフオク!) の商品情報をアーカイブ公開 - オークファン(aucfan.com) 管26067マ PENTAX 645用 外部バッテリーパック REMOTE BATTERY PACK 645(アクセサリー)|売買されたオークション情報、Yahoo!オークション(旧ヤフオク!) の商品情報をアーカイブ公開 - オークファン(aucfan.com)](https://auctions.c.yimg.jp/images.auctions.yahoo.co.jp/image/dr000/auc0412/users/e3c18afcb031eb5964282ca601971108ff06883c/i-img1200x800-1703927658ymqysx335881.jpg)
管26067マ PENTAX 645用 外部バッテリーパック REMOTE BATTERY PACK 645(アクセサリー)|売買されたオークション情報、Yahoo!オークション(旧ヤフオク!) の商品情報をアーカイブ公開 - オークファン(aucfan.com)
![Pentax 645N No power & Erratic functions Repair info - Burned out inductor & Bad Negative Bat Switch - YouTube Pentax 645N No power & Erratic functions Repair info - Burned out inductor & Bad Negative Bat Switch - YouTube](https://i.ytimg.com/vi/J_3NwlY7XoM/maxresdefault.jpg)
Pentax 645N No power & Erratic functions Repair info - Burned out inductor & Bad Negative Bat Switch - YouTube
![For anyone with a busted Pentax 645N battery holder, I've made one and posted the files online. Details in comments. : r/analog For anyone with a busted Pentax 645N battery holder, I've made one and posted the files online. Details in comments. : r/analog](https://i.redd.it/ppt2d1pe4eo81.jpg)
For anyone with a busted Pentax 645N battery holder, I've made one and posted the files online. Details in comments. : r/analog
![管26067マ PENTAX 645用 外部バッテリーパック REMOTE BATTERY PACK 645(アクセサリー)|売買されたオークション情報、Yahoo!オークション(旧ヤフオク!) の商品情報をアーカイブ公開 - オークファン(aucfan.com) 管26067マ PENTAX 645用 外部バッテリーパック REMOTE BATTERY PACK 645(アクセサリー)|売買されたオークション情報、Yahoo!オークション(旧ヤフオク!) の商品情報をアーカイブ公開 - オークファン(aucfan.com)](https://auctions.c.yimg.jp/images.auctions.yahoo.co.jp/image/dr000/auc0412/users/e3c18afcb031eb5964282ca601971108ff06883c/i-img1200x800-1703927658bmdwye333859.jpg)
管26067マ PENTAX 645用 外部バッテリーパック REMOTE BATTERY PACK 645(アクセサリー)|売買されたオークション情報、Yahoo!オークション(旧ヤフオク!) の商品情報をアーカイブ公開 - オークファン(aucfan.com)
![D-li90 D Li90 Dli90 Li-ion Battery For Pentax 645 645d 645z K-1 K-01 K-3 K-5 K-5d K-5iis K-7 K-7d K1 K01 K3 K5 K5d Ii 2 | Fruugo NO D-li90 D Li90 Dli90 Li-ion Battery For Pentax 645 645d 645z K-1 K-01 K-3 K-5 K-5d K-5iis K-7 K-7d K1 K01 K3 K5 K5d Ii 2 | Fruugo NO](https://img.fruugo.com/product/0/50/739773500_max.jpg)
D-li90 D Li90 Dli90 Li-ion Battery For Pentax 645 645d 645z K-1 K-01 K-3 K-5 K-5d K-5iis K-7 K-7d K1 K01 K3 K5 K5d Ii 2 | Fruugo NO
![Scored this Pentax 645 today along with everything seen in the photos for $150. Only problem is previous owner left batteries in the battery holder and when they exploded, they took the Scored this Pentax 645 today along with everything seen in the photos for $150. Only problem is previous owner left batteries in the battery holder and when they exploded, they took the](https://i.redd.it/8brgv48qw4s71.jpg)
Scored this Pentax 645 today along with everything seen in the photos for $150. Only problem is previous owner left batteries in the battery holder and when they exploded, they took the
![管26067マ PENTAX 645用 外部バッテリーパック REMOTE BATTERY PACK 645(アクセサリー)|売買されたオークション情報、Yahoo!オークション(旧ヤフオク!) の商品情報をアーカイブ公開 - オークファン(aucfan.com) 管26067マ PENTAX 645用 外部バッテリーパック REMOTE BATTERY PACK 645(アクセサリー)|売買されたオークション情報、Yahoo!オークション(旧ヤフオク!) の商品情報をアーカイブ公開 - オークファン(aucfan.com)](https://auctions.c.yimg.jp/images.auctions.yahoo.co.jp/image/dr000/auc0412/users/e3c18afcb031eb5964282ca601971108ff06883c/i-img1200x800-170392765844xc14344457.jpg)
管26067マ PENTAX 645用 外部バッテリーパック REMOTE BATTERY PACK 645(アクセサリー)|売買されたオークション情報、Yahoo!オークション(旧ヤフオク!) の商品情報をアーカイブ公開 - オークファン(aucfan.com)
![For anyone with a busted Pentax 645N battery holder, I've made one and posted the files online. Details in comments. : r/analog For anyone with a busted Pentax 645N battery holder, I've made one and posted the files online. Details in comments. : r/analog](https://i.redd.it/5l438s9n4eo81.jpg)
For anyone with a busted Pentax 645N battery holder, I've made one and posted the files online. Details in comments. : r/analog
![Amazon.com : Pentax D-LI90E Rechargeable Lithium-Ion Battery for 645, K-1II, K-1, K-3II, K-3, K-7, K-5, K-5II & K-5IIs DSLR's : Digital Camera Batteries : Electronics Amazon.com : Pentax D-LI90E Rechargeable Lithium-Ion Battery for 645, K-1II, K-1, K-3II, K-3, K-7, K-5, K-5II & K-5IIs DSLR's : Digital Camera Batteries : Electronics](https://m.media-amazon.com/images/I/71dOHUz5FPL.jpg)
Amazon.com : Pentax D-LI90E Rechargeable Lithium-Ion Battery for 645, K-1II, K-1, K-3II, K-3, K-7, K-5, K-5II & K-5IIs DSLR's : Digital Camera Batteries : Electronics
![Scored this Pentax 645 today along with everything seen in the photos for $150. Only problem is previous owner left batteries in the battery holder and when they exploded, they took the Scored this Pentax 645 today along with everything seen in the photos for $150. Only problem is previous owner left batteries in the battery holder and when they exploded, they took the](https://i.redd.it/5mh3z58qw4s71.jpg)
Scored this Pentax 645 today along with everything seen in the photos for $150. Only problem is previous owner left batteries in the battery holder and when they exploded, they took the
![Original Replacement Camera Battery D-Li90 For Pentax 645D K7 K7D K3 K5 K52S K01 Camera Battery 1860mah - AliExpress Original Replacement Camera Battery D-Li90 For Pentax 645D K7 K7D K3 K5 K52S K01 Camera Battery 1860mah - AliExpress](https://ae01.alicdn.com/kf/H51c964fff4ce41c59e0943e39e6580121/Original-Replacement-Camera-Battery-D-Li90-For-Pentax-645D-K7-K7D-K3-K5-K52S-K01-Camera.jpg)
Original Replacement Camera Battery D-Li90 For Pentax 645D K7 K7D K3 K5 K52S K01 Camera Battery 1860mah - AliExpress
![HQRP 4-Pack 6-Volt Battery for Mamiya 645 Pro TL / RZ67 PRO II, Pentax 67, Minox 35 ML, Zenit (Zenith) - Walmart.com HQRP 4-Pack 6-Volt Battery for Mamiya 645 Pro TL / RZ67 PRO II, Pentax 67, Minox 35 ML, Zenit (Zenith) - Walmart.com](https://i5.walmartimages.com/asr/43b8f343-b353-4cf5-9ae8-3b46c3395770.627f6881e903909e75306111ca2b65ff.jpeg)