HWE 12V 300Ah Lithium Battery, Deep Cycle LiFePO4 Battery Built-in 100A BMS, Offer 4000~8000 Cycles for RV, Marine, Solar Energy Storage, Golf Car, UPS，and Household Backup Power
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This item is eligible for return within 30 days of receipt
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
Only 5 left in stock, order soon!
Arrives
Jul 15 – Jul 17
Size: 12V 300AH 1PACK
Features
- 10 Years Lifetime: HWE 12v 300ah lithium batteries are manufactured by automotive-grade LifePO4 Cells with higher energy density. It was the ultimate in deep-cycle battery technology deliver unrivaled performance life. HWE 12v LifePO4 battery can provide 4000+ cycles of life, the use time can be 10 years.
- Safety and Efficiency: HWE 12v deep-cycle batteries 300ah were made of non-toxic renewable sources, it will not produce toxic lead, harmful sulfuric acid. HWE LiFePO4 battery 300ah can be 100% discharged while lead acid battery can only 50% discharged.
- 100% Protection: HWE 12 volt 300 ah batteries built-in 100A BMS which can protect it from overcharge, deep discharge, overload, short circuit, low self-discharge rate, and overheat for more performance and longer life.
- Capacity Expansion: HWE 12v 300ah Lifepo4 batteries can be connected in parallels and in series for larger capacity and voltage. It can be extended up to 4 in series and 4 in parallel to get max 1200Ah or max 48V. Before make batteries in series or parallel, you need to keep the battery voltage difference within 0.2V.
- Application Fields: Perfect for RV camper battery, marine battery, trolling motor battery, RV battery, golf cart battery, fish finder battery, solar/wind energy storage system, house alarm security system backup power, UPS backup, outdoor camping, and household power supplies.
Brand: HWE
Battery Cell Composition: Lithium
Unit Count: 1 Count
Voltage: 12.8 Volts (DC)
Reusability: Rechargeable
Product Dimensions: 12.9 x 6.77 x 8.66 inches
Item Weight: 58 pounds
Date First Available: April 14, 2022
Manufacturer: Howell Energy Co., Ltd
Country of Origin: China
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Jul 15 – Jul 17
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 12V 100AH 4PACK
These batteries are good replacements for Ryobi 480e, but battery tray adjustment needed because batteries are longer than original batteries. Cut time is longer with consistent power.
Reviewed in the United States on June 16, 2023 by Rickey T
Size: 12V 100AH 4PACK
Trolling motor
Reviewed in the United States on June 22, 2023 by I purchased these batteries back in April but waited to review until I was sure. I drive big rig and fish one twice a month. I am now sure that I’ve made the right choice in batteries for my boat. I could’ve gone name brand but all I would done is paid for the brand. Howell energy batteries are just as good if not better. I’ve had my trolling motor at 80% most of the day and my batteries will not quit. Thank you Howell energy.
Size: 12V 100AH 2PACK
We purchased two 100 amp hour batteries (HWE 12 v 100AH) for our freezer back up system, maintained by a charge controller set for LiP. Once fully charged, the system was tested for 24 hours and ran fine. Last week, we noticed the system voltage had crashed to1.7 v and locked up. A smart charger reported "error" and would not charge. We recovered the bank by tapping the terminals with a 12 v lead acid battery not limited to current. Current draw was so large that the batteries alarmed even with a momentary tap. Three taps recovered voltage to 5 v, at which point we were able to connect the smart charger in "repair" mode until 10 v back voltage, and then run a rull LiP charge cycle. Once fully charged, we ran a 24 test, taking 1.6 kwh's, and the system crashed again to 1.7 volts. We have contacted Howell Energy several times, including the email address in China, but have not yet received any response. The system is now useless and apparently is defective. Update: Howell Energy responded finally and requested photos and videos of our tests, presumably a discharge to crash scenario, but that was not clear in the request. Test is in progress. Shipping to California would be at our expense. Communications thus far have been brief and cyriptic. Implication is replacement if defective units are detected in California. Update#2: Howell requested a complete discharge test with photographic evidence, which we performed in accordance with their instructions. The batteries crashed to 1.74 volts in an identical manner to the two previous tests, see attached photo of the final battery state due to faiure of the BMS. According to Howell, the BMS built into these units should cut off discharge at 10 volts. We will be packing them up for shippment to California at our expense, per Howell instructions. Update #3: The batteries were disconnected and prepared for shipping, so were no longer connected to the inverter. Howell requested a voltage check. After 24 hours disconnected, both batteries now read 11.7 volts, indicating less than 10% capacity. Both batteries were frozen at 1.7 volts and would not take a charge in all three previous discharge tests, requiring the momentary bump with 12 volts from a lead acid battery in order to recover sufficient voltage to allow a smart charger to function. We have requested an explanation of this situation. Communicaiton with Howell improved following our first post here but apparently we can not revise only that component, so we have revised our overall rating slightly pending the outcome of this situation. Update #4: "Jack" with Howell is no longer responding to our emails. They have admitted that the batteries are defetive based on our tests performed to their specification. They refuse to provide a UPS return lable at their expense.
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Reviewed in the United States on November 26, 2022 by Engineering Engineering
Size: 12V 100AH 4PACK
The only thing I would like to see this company change is the bolt size from 5/16 to 3/8.
Reviewed in the United States on June 13, 2023 by Amazon Customer
Size: 12V 100AH 4PACK
Great product holds charge!!
Reviewed in the United States on June 14, 2023 by Michael Schultz Michael Schultz
Size: 12V 100AH 2PACK
Working great so far. I converted my Ryobi riding mower from AGM batteries to these. I have no issue cutting my whole lawn (2/3 acre) on a charge. When new my AGM's would be at half charge when mowing completed which is as far as you should discharge them without damaging them (AGM's). They only lasted 3 years, 1 of which I had to charge again mid-cutting. LiFePOs can be nearly fully discharged and left sitting fully charged without damage. This means I have about twice the range now. Of course these are significantly more expensive than AGM's but should last years longer as well. I didn't test if they meet the stated capacity but I have no complaints based on the range I'm getting.
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Reviewed in the United States on January 27, 2023 by Damazon
Size: 12V 100AH 1PACK
This was defective and a complaint to the seller did no good at all. Whoever answered my complaint did not have any product knowledge. The green cover on the top of the battery was not attached at all. It was designed to be permanently attached and sealed. When I tried to pick up the battery with the lifting straps the cover came off exposing the inner wiring and components. They said they would send me a new cover which would not solve the problem at all. Now it's too late for a refund. ATTENTION Updated Review: I misunderstood the sellers initial reply to my complaint. I thought they offered to replace the lose cover only. What they did was send me a new battery. This one is working great. I didn't have to pay any shipping charges or anything, so I am a very happy customer and changed the rating to 5 stars. EXCELLENT customer service. Thank you!
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Reviewed in the United States on February 22, 2022 by Alan J.
Size: 12V 100AH 1PACK
This battery has a 100 Ampere Battery Management System (BMS). Other batteries rated at 100 AH have only a 50A BMS. Some of the 100 AH batteries are made of many, many small cells wired in series/parallel to obtain the 100 AH rating, this battery uses only 4 big cells, better volumetric density! I read reviews, compared prices and decided on this battery after also visiting the manufacturer's web site to see their other products. Howell Energy appears to be a serious supplier of advanced electrical/electronic power equipment.
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Reviewed in the United States on April 6, 2022 by Laz in the OC