Blue Heron Battery LLC

05/19/2026

HOW LONG WILL MY LIHTIUM BATTERY LAST?

Hey, friends,
Many users ask the above question, and try to correlate some claimed cycle ratings to days of use. Lithium cells when new are required to be tested by the cell manufacturer to establish cell cycle rating. Higher priced cells and batteries have higher cycle ratings and expected longer life. The cell cycle rating doesn’t directly give you expected life, but it likely correlates. Lithium has been in use in cruising boats for almost 20 years, so practical data on lithium battery life on a cruising boat can be extracted. Perhaps you have experienced the end of life of a lithium battery or battery bank, or are aware of such a case. Can you share how long your or a friend’s lithium house battery bank lasted in a b oat or RV, and the make/model of the battery? Our engineers will identify the original cell cycle rating for that battery’s cells. We will only use the cell manufacturer’s cell cycle rating and not the battery manufacturer claimed cycle rating. We already have data for several cases, but would like many more. If you have data on multiple battery banks, come back to this link each time to submit data on another case. We will share results here, on general battery life vs. true cycle rating tests. Click below to send along data. And let friends know. Thanks!

https://forms.gle/fg2miUig6eXsJQrt9

(From the Blue Heron Tech Support Team)

04/21/2026

Join us this Saturday at the Northern Neck Sail & Power Squadron Spring Boat Show and check out all of our newest Lithium batteries!
blueheronbattery.com

04/08/2026

Introducing the New 460AH 12.8V Extreme from Blue Heron. The best of the best!
Bluetooth Monitoring - True Deep Cycle (Prismatic Cells) - Rugged case, with Heater - External communications with Victron network - Surface ON-OFF switch - Surface SoC scale - 15-20 year cells. Its 1,000A surge, 300A continuous current, and 460Ah capacity make this a do-it-all battery.
https://www.blueheronbattery.com/shop/p/460ah-lifepo4-battery-extreme-series-a3b5w-ktll6

03/05/2026

01/08/2026

More accolades for Blue Heron Lithium Battery!
This time from PANBO, the Marine Technology Hub.

PANBO's Ben Stein says: “Blue Heron offers a high-performance battery at a reasonable price to solve a wide variety of needs.”

https://panbo.com/blue-heron-extreme-series-battery-feature-rich-and-high-performance/

www.blueheronbattery.com

Blue Heron is a relatively small battery brand. So, you may not have heard of them as they have less marketing power than the bigger battery brands I've reviewed. But, that doesn't stop them from offering a premium battery with impressive features and customer service. Perhaps in part because of the...

01/08/2026

Clark's Adventure calls Blue Heron’s Extreme Series “The Best Made Battery”!

Well respected technical evaluator Clark reviewed the design of Blue Heron Battery’s Extreme Series Battery, and the headline of his review is “Finally! A Properly Made Li Battery. The Best Made Battery I Have Seen!”

Follow this link for the full review: https://www.youtube.com/watch?v=uHMz89ra7mU

www.blueheronbattery.com

In this video I give my opinion of the Blue Heron Extreme. This is the ONLY battery I have ever heard of that comes from the manufacturer fully top balanced...

11/11/2024

Check out our new, high current-flow Extreme series lithium batteries, with Victron Comms, external switch, surface radiator, external SoC Meter, robust case. Great for all boating needs, electric outboards, RV's, golf carts, and more. LiFePO4. We are a US Company, in-house tech support.

12/11/2023

04/24/2023

One-Time Special - 105Ah Drop-In Lithium batteries with Bluetooth, Group 31 size. New batteries, UL-certified LiFePO4 cells, long life deep cycle prismatic cells, 10-year warranty. ONLY $489 (33% OFF). Making room for new shipment; nominal shipping charges apply. Fully tested before shipment by US team, US warehouse, US tech support. 14 years-experience supplying lithium batteries for marine and RV. Contact [email protected] to place order, while quantities last.

02/21/2023

These are ideal cells for your EV-DIY project. Don't waste your project on used cells - choose brand new high quality cells. These are rugged and have the highest energy density of any large format, reinforced case LiFePO4 prismatic cell. And this 3rd-Generation comes with clamping plates to ensure extra-long life. Our prices are the best in the US and include shipping. This manufacturer (GBS) has supplied deep cycle cells to us for over 14 years. Many of their 1st-Generation cells are 12-14 years old and still going strong, and this 3rd-Generation design is their best ever. https://BlueHeronBattery.com