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Best Automotive Replacement Battery Trays

Attwood Battery Tray- 27 Series
The polypropylene hold-down strap has a positive locking, quick disconnect buckle.
Reviews
"I was able to bolt that down and then use the nylon strap that came in the package for my Attwood Battery Tray to secure my new battery down."
"I wish it came with SS mounting screws but I guess one size may not fit all applications so I can see why they are not included."
"Does what it's supposed to do."
"As advertised."
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Genuine GM 15246518 Battery Tray, Right
Original Equipment, GM 15246518, right-hand side battery tray. Enter your model number to make sure this fits.
Reviews
"Genuine, OEM GM product."
"I had to remove my fender bracket to clear the battery, but it works great."
"Quality OEM part and fit my 2004 Avalanche 2500 like a glove."
"Added to a 2002 Avalanche 1500 for a second battery."
"Including the removal of a small piece of stamped steel...the installation was about 10 minutes."
"Shipped quickly, easy to install."
"installed a second battery in a 2003 chevy 2500 6.0 on the passenger side fit good."
"Should fit perfectly, However came in damaged box and has a ton of deep Gouges and Scratches down to bare metal."
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Genesis Offroad Jeep JK Dual Battery Kit with 200 AMP Isolator for 2012+
The Genesis dual battery kit is designed to give you additional battery capacity and run time, while protecting your cranking battery from being drained by your accessories. All the aftermarket accessories that are connected to the power and ground bus bars will continue to run from the second battery only, saving the cranking battery for starting the engine. If the cranking battery ever gets too low to start the engine, you can press the boost button to jump start yourself from the second battery. Smart Isolator connects batteries when cranking battery is above 13.2v for 2 minutes, disconnects at 12.7v for 1 minute.
Reviews
"Rather than buying Optima batteries, I used two batteries from (local auto parts store). I was able to make it fit by relocating the wiring harnesses and removing the handles from the batteries, but the tray should have been made a half inch wider or it should be sold as "size Optima" rather than "size 34". Second issue, and again why I nearly returned the batteries and bought Optima is that the posts for the Optima are located more inward. I wouldn't count any of my issues against the Genesis if they just said, "use Optima batteries" but the FAQ specifically say that any size 34 battery will work."
"Easy to understand instructions, fit in my 2016 Sahara Unlimited with no problems."
"Easy install and looks great."
"love my dual battery tray from genesis!"
"Genesis is a great company with great customer support."
"The quality and craftsmanship of this dual battery kit, and this companies products in general, is second to none."
"The fit was perfect, installation was easy with the instructions, and it works!"
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Best Automotive Replacement Battery Cables

DBPOWER 600A Peak 18000mAh Portable Car Jump Starter (up to 6.5L Gas/ 5.2L Diesel Engine) Power Pack Battery Booster, Power Bank with Smart Charging Port, Compass, LCD Screen & LED Flashlight (Red)
It will jump start. 6.5L gas or 5.2L diesel. engine up to 30 times on a single charge. Faster & Smarter Battery Charger. It equipped with a 2.4A USB Output and smart USB port, with 18000mAh capacity, you can charge your cellphones, tablets, kindles etc. Convenient Package & Ultra Compact. The unit is supplied in a fabulous quality semi-hard case featured also a yellow wrist carry strap. Your jump starter will perform best when its battery is fully charged. 【SMART PORTABLE CHARGER】This jump starter comes with dual USB outputs (including a smart USB output) and a DC output. The intelligent protection device on the clamps can provide short circuit protection, over-temperature protection, reverse-polarity protection, reverse-charge protection, over-charge protection, over-discharge protection, over-current protection, over-voltage protection, low-voltage protection, etc with a built-in protection circuit.
Reviews
"This is well design car jumper."
"I do monitor the power level, and set a calendar reminder to check it every month and to give my dog his heartworm medicine......"
"Im very satisfied with this battery booster and comes in handy when I go on long car trips. It is very powerful and is a nice item to have when you have an old car."
"It makes your car start when the batteries in your car are dead.Also, It can charge phones and iPad.The flashlight on the jump starter is very strong."
"* it's portable, so, the jump-start is by "boosting" the jump-start current over 10~20 seconds, the experience you will have and I had will different from the jump-start with a jump-start cable or big, heavy lead-acid battery - this can't power a inverter continuously, nor you can keep cranking and starting the vehicle continuously. * 18000mAh, so, which is not for jump-start, most of the time, it can work as a power bank, a huge one, can fully charge an ipad or two, or together with some smartphones, that's what I like it."
"I have also used it in place of a battery on my ttr 125 dirt bike in order to use the electric start by just conecting it to the positive and negative cables on it."
"The 'smart' jump box connector never delivers power automatically, I've always had to force the switch by holding a button for 5 seconds."
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Best Automotive Replacement Battery Switches

GOOLOO 450A Peak Car Jump Starter (Up to 4.0L Gas or 2.5L Diesel Engine) Portable Phone Charger Power Pack 12V Auto Battery Booster with LED Light and Multiple Protected Jumper Clamp, Black/White
Power Bank Equipped with a 2A USB output, you can charge your cellphones, tablets and kindles etc. [GOOLOO Compact Car Jump Starter]: GOOLOO use high-rate Lithium ion polymer battery cell, it can jump start your vehicle (up to 4L Gas or 2.5 L Diesel or Motorcycle , RV, tractor, light-duty trucks, mower, cargo vans, ATVs, snowmobiles , oil boat , etc ) up to 20 times with 450 amps of peak current and heavy duty clamps and cables. [Portable Power Bank]: With 10000mAh capacity, charge phones, tablets, kindles and other devices at speeds of up to 2 amps. [What You Get]: GOOLOO Jump Starter GP03B, Intelligent Jump cable, Car Charger, 3 in1 USB Cable, User Manual , We offer 12 + 6 month extended warranty & 30 days money back and 24/7 friendly customer service, welcome customers to contact us at any time.
Reviews
"I had a similar device to this made antigravity which twice price when got three years and it served me well the few times I used it."
"This is a must have item, even if you have a road side assistance membership this will save you a service call plus you don't have to wait for a tow truck to come."
"Love the compact design, ease of charging, and the multiple ways it can be used--both as emergency car starter and battery pack for charging phone, tablet, etc."
"After more than one year after purchasing, I finally need to use to jump my car."
"Bought this item for my husband for Christmas and he loves it."
"I used it to start my 1.3L petrol vehicle and it was awesome - started at least 5+ Times."
"Great battery back up that fits right into my son's glove compartment."
"Bought this as a Christmas gift."
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Best Automotive Replacement Battery Jumper Cables

NOCO Genius Boost HD GB70 2000 Amp 12V UltraSafe Lithium Jump Starter
Designed for gas engines up to 8 Liters and diesel engines up to 6 Liters for a car, boat, truck, diesel pickup, tractor and more.
Reviews
"I am a garage foreman for a large electrical utility company, in charge of maintaining everything from trailers and forklifts to Ford F550's and Heavy Duty International Trucks. I have been able to jump start 13.0L Navistar diesel engines with ease, something I thought wasn't possible from a battery pack of this size. I love being able to use a cigarette lighter 12V charger on my work truck to charge the battery."
"They are larger to store, have distance limitations, have the possibility or crossing the connection, and are a pain to fold back into their undersized pouch. I like the features that don't allow you to reverse the polarity on the clamps, as well as the ability to recharge anything via two USB ports."
"Whenever a car battery (or any rechargeable battery) drops below a critical open circuit (no load) voltage (for 12 volt batteries this would be around 11 volts) internal damage begins and if one has a vehicle which drains a battery below this critical voltage (called a parasitic draw) you lose capacity every time a (what i call a destructive discharge) occurs. Under these conditions even a new battery may only last a few months and this applies to any type rechargeable battery Current rechargeable Lithium batteries would fail in one destructive discharge if protective circuits did not shut them off soon enough."
"Heading back from Columbus to Cincinnati I pull off the highway to get a drink from a gas station and someone has their hood up and I hear the guy helping them say, "Man, I just lent my cables out to a friend." Update: 03/23/2017 I bought a Land Cruiser for winter time driving and maybe some off-road adventure so I bought a second one of these bad boys for that vehicle."
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Best Automotive Replacement Battery Terminals & Ends

Military Spec Battery Terminal Top Post Kit
Kit Includes both positive and negative specific Fastronix mil spec top post connectors, (4) 2 gauge 3/8" copper lugs, (4) 3/4"x 1-1/2" adhesive lined heat shrink for superior cable sealing and protection and a pair of Fastronix mil spec battery terminal covers to prevent accidental shorting and give your install a professional look. All in One Kit for Multiple Battery Installations (Battery Cable Not Included).
Reviews
"Great if you use military style battery terminals, provides a level of safety from accidentally crossing both terminals with a wrench or something."
"High quality set of hardware."
"I posted pictures of the install to an enthusiast forum and got several "likes"."
"Upgraded my 1992 Jeep Comanche's top terminals with these heavy duty looking ones."
"These are great battery terminals that I used to ditch the stupid side post system in my truck and move everything to a top post."
"Good set of products for replacing the old, corroded top mount battery terminals ."
"Ill have to post a phot but i was really please on how this terminal kit worked out."
"Great battery terminals."
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Best Automotive Replacement Battery Relocation Kits

2 foot (24 Inch) 4 AWG Gauge Battery Cables Set by Spartan Power, Made in America, Great for Jumping Batteries Together in Series or Parallel
We believe these are the best 4 AWG battery cables on the market today, if you ever experience a crimp failure, Spartan Power will gladly repair your cables for free! Spartan Power also has 4/0 AWG (ASIN B071KQFQ3M) and 1/0 AWG (ASIN B06XCFLVCF) Battery Cables available.
Reviews
"I bought two of the cables for connecting a 36 volt trolling motor system.."
"I used these cables to connect two batteries together for my travel trailer."
"These are excellent cables!"
"Cables arrived on time and we're of excellent quality."
"Good quality cable."
"Just the right size and color for my battery posts joined in parallel."
"Very high quality cables perfect match for my aims 1500 watt inverter."
"What can you say it's a cable😊, going to replace the cables on my jeep."
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