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STARKPOWER Deep Cycle SP-12V12-EP 12 Volt 12 Ah Capacity Lithium-Ion Energy Storage Battery with BMS

5.0 out of 5 stars 2 customer reviews

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  • Drop in replacement for your lead-acid battery system that can be installed in any direction and requires no change to your existing system; Perfect for your RV, solar energy storage system, UPS Backups or any system that uses a sealed lead-acid battery
  • Stark Deep Cycle batteries have an internal microprocessor controlled Battery Management System that monitors the key operational parameters during charging and discharging, such as voltages, currents and internal temperatures, prolonging battery life
  • 5.9" (150mm) Length x 3.9" (95mm) Width x 3.7" (95mm) Height and weighs only 3.7 lbs. (1.7kg); Connectors: F2, 0.25" 6.4mm Spade Terminals
  • Specifications: Voltage 12; Capacity: 12Ah; Max charge voltage is 14.6V and the discharge cut-off voltage is 10.5V; Max charge current is 12A and max discharge current is 25A
  • Stark Deep Cycle batteries are 80percent lighter and 2-4 times the service life of traditional lead-acid equivalent with > 3,000 deep cycles or about 10 calendar years
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Product Information

Technical Details

Brand StarkPower
Model SP-12V12-EP
Item Weight 3.7 pounds
Product Dimensions 5.9 x 3.9 x 3.7 inches
Item model number SP-12V12-EP
Batteries 4 Lithium Metal batteries required. (included)
Manufacturer Part Number SP-12V12-EP
Cover Included Battery

Additional Information

ASIN B009GMQBCY
Customer Reviews
5.0 out of 5 stars 2 customer reviews

5.0 out of 5 stars
Best Sellers Rank #1,349,264 in Automotive (See top 100)
#5,314 in Electronics > Accessories & Supplies > Batteries, Chargers & Accessories > Household Batteries > 12V
Shipping Weight 4 pounds
Domestic Shipping Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
International Shipping This item is not eligible for international shipping. Learn More
Date First Available September 25, 2012

Warranty & Support

Product Warranty: For warranty information about this product, please click here

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Product Description

StarkPower's Deep Cycle line of lithium-ion batteries are the gold standard for energy storage. At one fifth the weight and two to four times the service life of a lead-acid battery, Stark batteries are the ultimate in weight versus power technology. This is a drop in replacement for your lead-acid battery system, requiring no change to your existing system. It can be placed in your RV, solar energy storage system, UPS Backups or any other application that uses a sealed lead-acid battery. Stark Deep Cycle batteries have a patent pending Battery Management System (BMS) with additional power terminal cut-off and recovery features to ensure that your battery will work every time. The BMS protects the cells from damaging themselves and significantly prolongs the life of the battery. The Future of Deep Cycle Batteries The Stark Deep Cycle 12V12-EP has superior functionality that will always keep it operating at peak performance Stark Deep Cycle 12V12-EP is 12V and has a 12Ah capacity, perfect for powering deep cycle systems The battery has an internal microprocessor controlled battery management system (BMS) that monitors the key operational parameters during charging and discharging Built for Long Lasting Reliable Power StarkPower takes prides in being at the forefront of innovations in the deep cycle battery category Cycle life of >3,000 cycles or about 10 calendar years StarkPower lithium-ion batteries have a usable capacity of 99 percent compared to 50-60 percent for traditional lead-acid batteries Functions in widest range of temperatures (from -22˚F to +140˚F) Product Specs The Stark Deep Cycle line has the best weight to power ratio 5.9" (L) x 3.9" (W) x 3.7" (H) and weighs only 3.7 lbs. Connectors: F2, 0.25", 6.4mm Spade Terminals Self-discharge rate per month is about 1-3 percent compared to lead-acid batteries which are about 30 percent Max charge voltage is 14.6V and the discharge cut-off voltage is 10.5V Max charge current is 12A and max discharge current is 25A.

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Top Customer Reviews

Purchased these batteries as replacements in my Currie SLA 14AH battery pack (was SLA 10AH OEM but I upgraded those SLA with 14AH rated batteries, 20lbs). My battery pack now weighs a little under 8lbs. The higher nominal voltage (26.4 LifePO4 vs. 25.2 SLA) gave the bike a noticeable power boost. If anyone else is looking to do this low cost upgrade, its easy. You just need to take out your old battery, connect the new ones, modify the case to fit your new batteries. You DO NOT have to remove the inline fuse. Consider it as added safety in case the BMS of the LifePO4 batteries does not work. If you don't want to modify your case to fit the 12AH batteries, get the 9AH batteries. They will fit perfect in the Currie OEM case. Also, buy the Stark Power charger to go with your batteries. You will have to add a XLR connector on the end if you want to use your original Currie battery pack case. DO NOT USE you old SLA charger even though it will work. Hope this helps. Thanks.

UPDATE: 1/11/13
Batteries got their first use on my 36 mile commute to and from work. Batteries lasted ALOT longer than the SLA batteries. By lasting longer, I mean they maintained high output thru 75% of my ride where the SLAs started to reduce performance around 40-50%. I increased my ride speed from 15MPH to 18MPH (75min vs. 60min for 18miles). I called StarkPower to discuss and first I must say that they are A+++ seller. We talked about the details of my battery usage and he gave me some tips on how to maintain the batteries overtime. He told me that if I started to see the batteries start to get imbalanced due to the series configuration, i needed to parallel the batteries together and/or charge them with with a 12V charger to help balance out the batteries. I'm an electrical engineer so I know what he means but if you're not, no worries. It's really a simple process. StarkPower also sells 12V chargers so you could always buy 1 when you purchase your batteries.
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Battery is light and keeps charge twice as long as deep cells. No issue with battery memory as far as I can tell.
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