Current Lead Time For Most Orders: New orders: About 1 Week
BP-K75L: High-Capacity USB-C Battery for Kenwood TH-D74 & TH-D75
More Power. Modern Charging. Built to Last.
The BP-K75L is a 5,000mAh (36Wh) extended-life battery pack that replaces the stock 1,820mAh Kenwood battery and delivers 2.7× the capacity. Charge it with any USB-C cable, swap the cells when they wear out, and finally use your D74 or D75 all day without carrying spares.
Not compatible with the TH-D72 or the stock desk cradle.
Designed, printed, and hand-assembled in Colorado, USA.
Kenwood TH-D74A and TH-D75. Not compatible with the TH-D72.
What's Included:
(1) BP-K75L battery pack, fully assembled
(1) Belt clip spacer with screws
(1) Spare battery latch
Design Details:
The shell includes a metal hinge, an included belt clip spacer, and a fix for the low-power default behavior found in earlier revisions. The locking mechanism is different from the stock battery. Do not bend the latch outward, as this will damage it. If you need help with installation, watch the installation video.
Each battery is 3D-printed and hand-assembled. Minor texture variations are cosmetic and do not affect performance.
Charging Notes:
Not all USB-C cables are created equal. If charging doesn't start, try a different cable. USB-A to USB-C cables are the most universally reliable. PPS-capable chargers will negotiate the optimal charge rate automatically.
Recommended Charger:
Any USB-C charger rated 15W or higher will charge the battery at full speed. Lower-wattage chargers will still work, they'll just charge slower. PPS (Programmable Power Supply) chargers will automatically negotiate the optimal charge rate but are not required. A USB-A to USB-C cable with a standard USB-A wall adapter also works and is the most universally reliable option.
Charging Indicator:
Red + Blue (may appear purple): Charging
Red only: Fully charged
Blue only: Slow charge
Red flashing: Cable or charger issue. Swap the cable.
User-Serviceable Cells:
The BP-K75L is designed for long-term ownership. When cell capacity eventually degrades, you can open the pack and replace the Samsung 50E 21700 cells yourself. No need to buy a whole new battery.
Printable Replacement Parts:
Want to print your own replacement parts? ASA or ABS filament strongly recommended.
Batteries are made to order in small batches. Current lead time is posted at the top of the site. Please check there for the most up-to-date estimate. Shipping options and costs are calculated at checkout.
USA: USPS, UPS, and FedEx
International: UPS and DHL. Customer is responsible for any import duties, taxes, or brokerage fees.
Shipping costs are calculated at check out.
A separate email is sent when your item is fulfilled and ready to head your way. The tracking number can take up to 48 hours to update.
USPS, UPS and FedEx are delivery options for USA. UPS, FedEx and DHL are delivery options for International Customers only.
USA Note: USPS shipments are often delayed but rarely lost. USPS has been known to take up to 30 days to deliver.
International Note: You are responsible for all additional costs related to customs and duties.
I will keep it brief and accurate. Anyone that operates or monitors using a Kenwood D-75 H.T. Radio . Simply stated this battery completes the package , leave the charge state anxiety at home. Turn ON , ALL of the widgets and features that attracted you to the D-75 . Turn these capabilities on and crank that duty cycle up to whatever the day into night brings. I would like to thank W0AEZ for creating the missing link the D-75 requires, at a price point that is too KIND .
J
Jose Otero
BP-K75L | Kenwood TH-D75
This battery is awesome. This battery if properly use can give me 3-5 days use
J
Jack N4WFF
Capacity To Run All Day
Thank You for building this big battery. I didn't like using the TH-D75 unless I was around a charger. Now with all day capacity, this is my favorite radio.
T
Travis
Amazing piece of kit!
I appreciate the workmanship of this extended battery. It is well worth the price and the fact that another Ham made it makes it that much better.
J
John Moorhead
Many more QSO's between charges
The Kenwood TX D75A belt clip is attached to the HT with Phillips head screws, which makes it fairly convenient as my pocketknife has that type of driver head. When the W0AEZ 5000mAh battery arrived, I noticed right away that it had longer screws to accommodate the thicker clip backing, but these were Allen head screws instead of Phillips. I went to my local hardware store and bought some Phillips M3 screws in the proper length to solve this issue so now if I had to swap battery packs for some reason I can do it with a tool I always carry. However, I doubt I will need to swap it out because so far I have been able to operate all day long on a single full charge, many of those QSO's have been at full 5 watts power. Prior to getting this extended battery pack I had to limit my QSO time and constantly monitor power level. Now I find that I can carry out QSOs with confidence without worrying about running out of juice. The battery is definitely thicker than the original, and the snap fit to the HT is a bit tricky to achieve - I have to really push it in hard to get it to stay on, but once properly latched on, it will stay on. When the USB-C cable is plugged into the Kenwood side charging jack, the lightning symbol appears on the battery charge indicator. When the charging cable is plugged directly into the W0AEZ 5000mAh battery pack when attached to the radio, unfortunately the lightning symbol does not appear because that is a software function inside the HT. Note that when the battery pack is detached from the HT, there is an indicator LED on the contact (inside) side of the battery, but that is not visible when attached to the HT. That minor downside is negligible when weighing the benefits of much longer QSO time.
Customers are saying
4.79 ★ (607)
Verified
High-Capacity USB-C Battery for Kenwood TH-D7X – 5Ah BP-K75L
