[Discontinued] EnerAmp EA Series 3.2v Grade A LiFePO4 Cells

(1 customer review)

$120.00$230.00

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Description

Notice: This product line is being discontinued.  Shop all of our new LFP cells here: https://www.currentconnected.com/product-category/btry/btry-raw/

 

 

These are Lithium-Iron-Phosphate (LiFePO4) Cells for DIY battery assemblies commonly used in solar systems, RVs, boats, OTR trucks and large scale energy storage.  We have three capacity choices, 170ah and 202ah, and 302ah model numbers EA170, EA200, and EA300 respectively.  We have extremely limited stock of 302ah cells.  The stock quantity will update when we have more of them in stock.  Please do not spam our inbox asking when they will be in stock, when we have an estimated arrival date, we will post it in the variation description.Add the number of cells desired to your cart.

These cells are 3.2v cells and include M6 serrated nuts. They need to be connected together with the appropriate bus bars, available in Copper and Aluminum.  Our default quantity is 1 busbar per cell, so a 4 cell pack would get 4 busbars.  You will also need  a battery management system,  sold separately.  If you need help to determine which BMS you need, feel free to contact us.

Buy additional bus bars here.  Please note this size is slotted to fit both EA170 and EA200:
https://store.currentconnected.com/?product=ea170bb

Buy battery management systems here:
https://store.currentconnected.com/?product=daly-sbms

We recommend securing the cells together with VHB tape and rigidly fixturing the cells to prevent stress on the terminals caused by movement.  Buy VHB Tape here:
https://amzn.to/38KXpUH

This product is not a pre-designed all inclusive kit, such as those found here:
https://store.currentconnected.com/?product=ea170

 

EnerAmp Batteries are  A-grade cells, load tested and balanced at the factory. The guaranteed capacity is at least 170ah for EA170 and 202ah for EA200, with an internal resistance less than 0.3 milliohms.

Typically, 4 or more of these cells will be wired in series or parallel-series with a Battery Management System (BMS) to create a 12 volt battery, 8 cells for a 24v battery, or 16 cells for a 48v battery, with a suitable BMS. They may be paralleled at a cell level to increase your overall capacity (Ah).

Our permanent, laser welded M6 threaded studs are paired with the included serrated nuts ensuring a strong connection that will last for years, without the worry of loose interconnections or stripped cells.

It is very important to use a BMS to manage these cells.
LiFePO4 chemistry is easily damaged by over charging, over discharging, over/under temperature, and especially low temperature charging.  Use a BMS that monitors each series-connected cell (or group of parallel connected cells) and has a low-temperature cutoff.

Balancing: These cells are balanced from the factory on a per shipment basis. We have tested this specification and found that they will reliably charge all the way up to 3.450v per cell in a 4 cell pack before any one cell exceeds 3.650v with a standard BMS. If you are building packs larger than 1p4s, we recommend either top balancing them yourself, or utilizing our balancing & capacity test service.

Specifications

EnerAmp EA Series Cells

ParameterEA100 (Coming Soon!EA170EA200EA300 (Coming Soon!)
Nominal Capacity100Ah170Ah200Ah300Ah
Nominal Voltage3.2v
New Cell Typical Capacity~102Ah-105Ah~173Ah-175Ah~205Ah-207Ah~305Ah-310Ah
Internal Resistance≤0.3mΩ
Cycle Life85% @ 5000 Cycles @ 1C rate80% @ 4000 Cycles @ 1C rate85% @ 5000 Cycles @ 1C rate
Round Trip Efficiency98%
Charging
Allowable Burst Charging Current2C1C
200 Amps340 Amps400 Amps300 Amps
Optimal Max Charge CurrentC/2C/4
50 Amps85 Amps100 Amps75 Amps
Charge Voltage Limit3.65v
Recommended Cyclic Charge Voltage3.45v
Charging Temperature Limits0°C ~ 55°C
32°F ~ 131°F
Recommended Charge Temperature15°C ~ 35°C
59°F ~ 95°F
Discharging
Maximum Discharging Current (30 Seconds)2C
200 Amps340 Amps400 Amps600 Amps
Continuous Maximum Discharging Current1C
100 Amps170 Amps200 Amps300 Amps
Optimal Maximum Discharge RateC/2
50 Amps85 Amps100 Amps150 Amps
Discharge Voltage Limit2.8v
Recommended Cyclic Discharge Voltage3.0v
Discharging Temperature Limits-30°C ~ 55°C
-22°F ~ 131°F
Recommended Discharge Temperature15°C ~ 35°C
59°F ~ 95°F

EnerAmp EA Series Cells

ParameterEA170EA200
Storage
Recommended Storage State of Charge30%
Ambient TemperatureShort Term (Up to 1 month)-40°C ~ 45°C
-40°F ~ 113°F
Long Term4 (Up to 1 year)-20°C ~ 35°C
-4°F ~ 95°F
Humidity≤65%
Physical Characteristics
Weight3.9 kg4 kg
8.6 lbs8.8 lbs
DimensionsLength173mm173mm
~6.811 in.~6.811 in.
Width54mm56mm
~2.125 in.~2.25 in.
Height (Including Terminals)225 mm225 mm
~8.858 in.~8.858 in.
ThreadsM6 x 1 x 11 mm
Bolt Tightening Torque4.6 N·m
39.6 in.-lbf

FAQ

What are EnerAmp Batteries?

EnerAmp Batteries are our own line of LiFePO4 Batteries.  We launched EnerAmp Batteries in Febuary of 2021 with the mission to provide batteries to USA-based customers, with quick shipping times, lower shipping rates, rigorous quality control, US based 10 year warranty and English technical support. EnerAmp cells are warehoused in Valley Springs, California (USA) and are interconnected with Buss Bars fabricated in Manteca, California.

Why not buy cheap cells from China?

It has been our experience that when you buy cells from China, it may appear that they are far less expensive – this is nothing but false.  Often times you will find a great deal on batteries, but the shipping to get them from China costs nearly as much as the batteries themselves!  When you order EnerAmp batteries you will expect to have them shipped within 24 hours, and at your door in 2-7 days by UPS Ground, depending on how far from our warehouse in California you are located.  We even offer free local pickup!  No need to worry about shipping by sea and waiting 3 months just to realize you got ripped off with fake, B-Grade, used, or even totally faulty cells!  We also offer standard payment methods, so no need to setup a sketchy wire transfer that cannot be cancelled.  We accept all major credit cards as well as PayPal.

Current Connected has a industry-leading 10 year warranty that puts the customer first.  You can read the full policy here.  If you are having trouble getting your system up and running, we are available during normal business hours (9-5 PST), and we can help you both by E-mail or over the phone!  Try getting that from a China-based vendor.

What quality are these cells?

We do not sell any used products, without making it obvious to you.  We assure you that every EnerAmp battery is a top-quality, brand new cell.  “Grade-a” is ambiguous and has no standard definition in industry, however the quality of these cells far surpasses what China gets away with calling “Grade-A+”. When you receive an EA170, you can test and observe that a 170Ah cell will output an actual capacity of 173-175Ah at 100% DOD (3.65v – 2.8v).  EnerAmp cells are rated at 80% remaining capacity after 5000 cycles at 80% depth of discharge.  If you discharge to 100% depth of discharge, you can expect to see a 20% reduction in cycle life.

1 review for [Discontinued] EnerAmp EA Series 3.2v Grade A LiFePO4 Cells

  1. thealpina

    Many thanks to the crew at Current Connected! My Eneramp batteries arrived in perfect condition and I have to say they are perfect for my system build.

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