8d bus battery

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Rich
Top Member

United States
5768 Posts

Posted - 11/16/2007 :  11:03:26 AM  Show Profile  Reply with Quote
Did a quick search on here but didn't find an exact topic.

Based on your professional observations, which batteries do you find to be more effective in a school bus? 8D or Group 31s? Also, how many of each?

Up here in NY, it is mostly (3) Group 31s, and some folks occasionally do (2) 8Ds.

Looking forward to seeing the responses!

Mechan1c
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USA
846 Posts

bbird66
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USA
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IBTMech
Top Member

USA
973 Posts

40ngone
Senior Member

USA
142 Posts

busgeek++
Advanced Member

United States
253 Posts

Posted - 11/16/2007 :  7:20:42 PM  Show Profile  Reply with Quote
If you want serious power, get some marine 8Ds, especially those AGM ones, ballpark of 245ah, 1500 cca per battery, so 2 would be 3000cca! If that can't start a bus, then that bus has problems. With group 31, marine buys you nothing, still 105ah, 800cca.

Buses are not a way of life, they are life
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ModMech
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USA
948 Posts

Brad Barker
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USA
874 Posts

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Sours: https://www.schoolbusfleet.com/forum/topic.asp?TOPIC_ID=17452

Truck & Bus Batteries

Century Truck, Bus and Heavy Equipment batteries represent the latest in performance and reliability for haulage and light commercial vehicles. Designed and built in Australia* to better suit our harsh environment and extreme climate, they deliver what drivers and fleet managers really want — longer life with less down time.

Delivering more than just superior starting power, Century Truck, Bus and Heavy Equipment batteries can sustain constant current loads over extended periods, to run on-board accessories for longer.

*Selected items only

Heavy Duty - Heavy Equipment Vehicles
Dependable starting power
Improved strength, performance and service life
Superior durability and vibration resistance

Fitment Details

Normal Overall Dimensions (mm)

Length:528

Width:277

Height:224

Total Height:246

Special Features:Carry Handles, Glass Mat Separator, Low Maintenance, Mud Rack, Platelock™ Technology, State of Charge Indicator, Vibration Resistant.

 

Technical Specifications

Warranty:12 months

Conditions apply. Refer to individual warranty statements affixed to each product.

Volts:12

CCA:1300

RC:430

AH:200

Weight (kg):52.00

Sours: https://www.batteriesdirect.com.au/shop/product/27787/8d-n200z.html
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Clint Demeritt June 16, 2021

Perhaps you’ve never even heard of an 8D battery. It can be overwhelming to pick out a deep cycle battery for your boat, RV, or off-grid system. There are lots of different brands, types, and sizes. One option you may come across is the 8D battery, not to be confused with D-cell for small electronics. Let’s look at what an 8D battery is, its best applications, and what options are available. 

What is an 8D Battery? 

Batteries are categorized by “groups” based on their physical size. Typically, the larger a battery is, the more capacity and power it can deliver. Group 8D batteries are some of the largest 12-volt batteries available to consumers and usually have rough dimensions of about 21″x11″x10″ (LxWxH).

The large size of lead-acid 8D batteries allows them to have more, and thicker, lead plates inside them. The added plates giving more capacity and higher cranking amps than other battery groups. They also cause them to weigh a lot more. These batteries typically weigh between 130-180 pounds, have a capacity of 230-300 amp-hours, and can provide upwards of 1,500 cold-cranking amps (CCA).

The large capacity and high cranking amps make these a versatile option for both starting and house batteries in large RVs and boats. Their large capacity means that you can often replace three smaller lead-acid batteries with a single 8D battery and reduce the overall battery footprint. The main drawback to these is their size and weight. It can be very difficult to move a 200-pound battery around in small spaces.

What is the Difference Between 4D and 8D Batteries? 

One group size down is 4D batteries. 4D batteries typically have dimensions around 21″x9″x10″ (LxWxH) and weigh between 100-150 pounds. Since they are slightly smaller, they tend to have less capacity and fewer cold-cranking amps. On average, 4D batteries have between 150-220 amp-hours and 900-1,300 cold-cranking amps.

Benefits of 8D Lithium Batteries

8D lithium batteries are relatively new to the market but offer some great benefits over their lead-acid counterparts. When switching to a lithium 8D battery, the only potential drawback is that you will not have the same cold-cranking amp capabilities. Lithium 8D batteries usually have a lower current limit closer to 500 amps. However, Battle Born’s 8D lithium battery can sustain short current surges over 500 amps for a half-second or less.

Weighs Much Less than 8D Lead-Acid

In general, lithium batteries weigh about half of what lead-acid batteries of a similar capacity weigh. 8D lithium batteries are no exception. For example, our Battle Born 8D lithium battery only weighs about 80 pounds but has the capacity of 3 lead-acid 8D batteries or 9 lead-acid 100Ah batteries.  This is a power equivalent weight savings of 460 pounds!

Great for Large Marine or Large Off-Grid Applications

Discharging a lead-acid deep cycle battery below 50% of its capacity causes damage and shortens the battery’s life. On the other hand, you can discharge lithium batteries to more than 80% of their capacity without sustaining any damage. This increased efficiency offered by lithium batteries makes them an excellent option for replacing lead-acid batteries in marine and large off-grid applications. 

Charges 5 Times Faster than Lead Acid

Not only do lithium batteries offer increased efficiency over lead-acid batteries, they also charge faster! In fact, with the proper charge controller, lithium can charge up to five times faster than a similar lead-acid battery.

About Battle Born 8D Batteries

Battle Born lithium 8D batteries offer all of the added benefits above, plus a few other fantastic perks as well.

Comes With 10 Year Warranty

Battle Born batteries last 10-15 years even while being repeatedly discharged to 100% of their capacity. Better yet, Battle Born backs up their build quality with an industry-leading 10-year warranty.

Built-In Battery Management System

All Battle Born lithium batteries come with an integrated battery management system (BMS). The BMS monitors the battery for damage and defects, ensures it is operating within safe limits, and helps balance the charge across all battery cells. The BMS is critical to maintaining optimum performance and maximizing the life of the battery.

Designed and Built in the USA

Battle Born designs and assembles our lithium batteries in Reno, Nevada using the highest quality materials and lithium iron phosphate battery cells. Most battery lines are UL listed and rigorously tested, and guaranteed to be safe. 

Are 8D Batteries Worth It? 

8D batteries offer more capacity and power with an overall reduction in weight and footprint compared to three smaller lead-acid batteries. Depending on your application and power requirements, these large batteries may be an excellent option, especially if you consider a lithium version.

The main drawback to large batteries like these is that they are very heavy and harder to maneuver than smaller batteries. However, upgrading to a lithium 8D battery will mean that you get even more capacity than a lead-acid 8D battery at about the same weight as a smaller lead-acid with a third of the capacity. Not only that, your lithium 8D battery will likely never have to be replaced, resulting in overall cost savings over the life of the battery and reliability for your power needs.

For Power Storage Go Lithium

8D batteries are bigger, heavier, and can provide more power and capacity than other battery types. They’re a fantastic option to replace a series of smaller batteries in large applications with high power requirements. Beyond that, the recent introduction of lithium 8D batteries means you can reap most of the traditional lead-acid benefits without the added weight and a 10-15 year lifespan. Check out our industry-leading lithium 8D batteries to see if they’re a good fit for you.

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Sours: https://battlebornbatteries.com/what-is-an-8d-battery-are-they-worth-it/
DIY Skoolie LiFePO4 Battery - Bus Build episode 24

BATTERY - FLOODED - GROUP: 8D - 12 - CCA: 1425 - TERMINAL TYPE: SAE POST - TOP - HEAVY TRUCK

Part Number: BT8DP143EXCH

TRPPC Logo

Part Details

  • Description: BATTERY-GRP 8D AUTO TERM 1425CCA 440RC
  • Brand: TRP [TRPPC]
  • Unit of Measure: Each
  • VMRS Code: 032-001-001 [Battery]
  • Application: Heavy Truck
  • Battery Type: Flooded
  • CCA: 1425
  • Group: 8D
  • Style: Flooded
  • Terminal Location: Top
  • Terminal Type: SAE Post
  • Volts: 12

Special Offers

Benefits of a TRP® Performance Membership:

  • Use your membership to redeem three offers on three separate days during the quarterly promotion period, and you'll be rewarded with an exclusive savings offer.

  • Each quarter, the Reward period resets and there'll be a new Reward to earn.

  • Your Reward is redeemable for 90 days. There is a limit of one Reward per registered customer, per quarterly promotion period.

National Warranty

When you purchase replacement parts at any authorized TRP Parts dealership in North America, you will find most TRP parts are covered by a minimum of a one-year/unlimited mileage warranty.

The selection and availability of parts shown on TRPParts.com may vary by location. Please contact your local retailer to check availability.

Sours: https://trpparts.com/parts/part?parentName=bater-a&partNumber=BT8DP143EXCH

Battery 8d bus

EV8DA-A

DRY CELL Traction Industrial Battery

Discover® DRY CELL Traction Industrial batteries outperform traditional Flooded, AGM, and Gel deep-cycle batteries in demanding traction and industrial applications. The batteries are designed to deliver a long runtime, high operating current and withstand deep discharge and are ideal for powering equipment that is used multiple times a day.

DRY CELL Traction Industrial batteries have been used and trusted for more than ten years by the world’s largest industrial Original Equipment Manufacturers. Specific charge algorithms are available that support optimal battery performance and longevity.

CONTACT SALES

MECHANICAL SPECIFICATIONS
Industry Reference BCI: 8D
Length A (in/mm)20.6522
Width B (in/mm)10.8275
Height C (in/mm)8.7222
Total Height D (in/mm)9.5242
Weight (lbs/kgs)171.678
Terminal *AT
TechnologyDRY CELL AGM, VRLA

NOTE 1: Dimensions have a ±2 mm (0.08 in) tolerance. Weights may vary.
NOTE 2: Refer to terminal guide on website for torque values.

ELECTRICAL SPECIFICATIONS
Voltage (V)12
Voltage Cutoff (80% DOD)11.40
Internal Resistance (mΩ)2
Short Circuit (A) (20°C / 68°F)5700
Self-Discharge (20°C / 68°F)2-3% per month
Charge TemperatureMin: -10°C (14°F) | Max: 50°C (122°F)
Discharge TemperatureMin: -40°C (-40°F) | Max: 50°C (122°F)
Storage TemperatureMin: -20°C (-4°F) | Max: 60°C (140°F)

NOTE 3: Extra considerations must be given when designing systems for use at maximum temperatures.
NOTE 4: Internal Resistance is approximate.

PERFORMANCE SPECIFICATIONS
Amp Hours (AH)
3 HR5 HR20 HR
215240280

3 HR: 1.70VPC; 5 HR: 1.75VPC; 20 HR: 1.80VPC. All at 25°C/77°F

Minutes of Discharge
@25A@56A@75A@85A@100A
645280205170140
FEATURES

HYDRO POLYMER

  • Organic capillary separators with hydro polymer electrolytes resist dry-out and prevent thermal runaway
  • Maintains performance characteristics over operational life

ENHANCED ALLOYS

  • Thick plates with graphite enhanced alloys deliver maximum runtime over operational life

CARBON BOOST

  • Carbon additives to increase duty cycle performance, charge acceptance and partial state of charge operation

AUTOMATED THROUGH-THE-PARTITION WELD

  • Improved intercell weld consistency, and less lead waste than manual welding process (key models)
  • Supports higher current loads and lowers internal resistance

POLYPROPYLENE CASE

  • High heat resistance and durability (key industry models)
  • High precision pressure relief valves reduce water loss and extend life
  • Integrated flame arrestors prevent fire and explosion
BENEFITS

ENHANCED RUNTIME

  • High amp hour capacity
  • High operational voltage over lifetime
  • Delivers 80% DoD above 1.9 VPC

EXTENDED SERVICE LIFE

  • Long life superior to deep-cycle FLA / AGM / Gel batteries
  • 550+ cycles 70% DoD (IEC 254-1 Traction Lead-Acid)
  • 350+ cycles 100% DoD (DIN 43 539 VRLA)

RESILIENCE

  • Partial stage of charge operation superior to AGM
  • Intense duty cycling superior to AGM / Gel
  • Overcharge and over-discharge resilience superior to AGM
  • Compatible with AGM / Gel semi-traction charge profile

EXTREME TEMPERATURES

  • High temperature life superior to AGM
  • Low temperature operation superior to FLA / AGM / Gel batteries

EXTREME VIBRATION RESISTANCE

  • Vibration resistance superior to AGM / Gel
  • Shock tested (IEC 61373, DIN EN 61373, SAE J537)

OEM TRUSTED

  • Exceeds OEM specifications
  • Innovative technology
  • Global service and support

RELIABLE AND SAFE

  • Valve Regulated Lead-Acid, Dry Cell AGM
  • Maintenance-free, nonspillable, no-gassing
  • Spark and explosion tested (SAE J1495)

CERTIFIED QUALITY

Discover® manufacturing facilities are fully certified to ISO 9001/14001 and OSHA 18001 standards.

Designed in accordance with and published in compliance with applicable standards, including:

  • IEC 60254-1. Lead-Acid Traction
  • DIN 43 539. VRLA
  • SAE J537. Storage
  • UL, CE Health Safety Certified
SHIPPING CLASSIFICATION
  • Classified as a nonspillable battery
  • Without restriction for transport by Sea (IMDG amendment 27)
  • Without restriction for transport by Air (IATA/ICAO provision 67)
  • Without restriction for transport by Ground (STB, DOT-CFR-HMR49)

Temperature Effects on Capacity

Test Standards and Cycle Life

Open Circuit Voltage in Relation to SOC (20°C)

Self-Discharge Characteristics

Constant Current (IUI) Charge Profile

Voltage Regulated (IUU) Charge Profile

Relation between Charge, Voltage and Temperature

NOTES

  1. Due to self-discharge characteristics of lead-acid battery technologies, batteries should be top charged within 6 months of storage to ensure optimum performance, prevent sulphation and permanent capacity loss.
  2. Charge profile recommendations correspond to battery voltages at 25°C (77°F). For temperatures below, adjust +5mVPC/°C (+3mVPC/°F). Temperatures above, adjust -5mVPC/°C (-3mVPC/°F). Temperature compensated charging helps ensure optimum battery runtime and life performance.
  3. Charge profile recommendations depend on application and charger. IUI (or IUI with Pulse) is appropriate for applications that require frequent and deep discharges. IUU is appropriate for applications that are on standby and cycled less frequently.
  4. IUI with Pulse algorithm uses a pulse termination criterion. The finish current is pulsed on and off in order to keep the battery voltage at a minimum while still reaching target overcharge. If average VPC exceeds U4 and the charger output has been on for more than 30 seconds, the output is shut off until VPC falls to U3.
  5. IUI Charge Profile (if applicable), may have a continuous float phase added (2.27VPC).

Discover® reserves the right to make adjustments to this publication at any time, without notice or obligation. Data in this publication are for reference use only and models may vary from shown. It is the responsibility of the reader of this information to verify any and all information presented herein. For more information contact us at [email protected]

Printed: 10/17/2021

EV8DA-A

DRY CELL Traction Industrial Battery

Discover® DRY CELL Traction Industrial batteries outperform traditional Flooded, AGM, and Gel deep-cycle batteries in demanding traction and industrial applications. The batteries are designed to deliver a long runtime, high operating current and withstand deep discharge and are ideal for powering equipment that is used multiple times a day.

DRY CELL Traction Industrial batteries have been used and trusted for more than ten years by the world’s largest industrial Original Equipment Manufacturers. Specific charge algorithms are available that support optimal battery performance and longevity.

TERMINAL

LAYOUT

MECHANICAL SPECIFICATIONS
Industry Reference BCI: 8D
Length A (in/mm)20.6522
Width B (in/mm)10.8275
Height C (in/mm)8.7222
Total Height D (in/mm)9.5242
Weight (lbs/kgs)171.678
Terminal *AT
TechnologyDRY CELL AGM, VRLA

NOTE 1: Dimensions have a ±2 mm (0.08 in) tolerance. Weights may vary.
NOTE 2: Refer to terminal guide on website for torque values.

ELECTRICAL SPECIFICATIONS
Voltage (V)12
Voltage Cutoff (80% DOD)11.40
Internal Resistance (mΩ)2
Short Circuit (A) (20°C / 68°F)5700
Self-Discharge (20°C / 68°F)2-3% per month
Charge TemperatureMin: -10°C (14°F) | Max: 50°C (122°F)
Discharge TemperatureMin: -40°C (-40°F) | Max: 50°C (122°F)
Storage TemperatureMin: -20°C (-4°F) | Max: 60°C (140°F)

NOTE 3: Extra considerations must be given when designing systems for use at maximum temperatures.
NOTE 4: Internal Resistance is approximate.

PERFORMANCE SPECIFICATIONS
Amp Hours (AH)
3 HR5 HR20 HR
215240280

3 HR: 1.70VPC; 5 HR: 1.75VPC; 20 HR: 1.80VPC. All at 25°C/77°F

Minutes of Discharge
@25A@56A@75A@85A@100A
645280205170140

Temperature Effects on Capacity

Test Standards and Cycle Life

Open Circuit Voltage in Relation to SOC (20°C)

Self-Discharge Characteristics

IUI Pulse Charge Profile

Constant Current (IUI) Charge Profile

Voltage Regulated (IUU) Charge Profile

Relation between Charge, Voltage and Temperature

NOTES

  1. Due to self-discharge characteristics of lead-acid battery technologies, batteries should be top charged within 6 months of storage to ensure optimum performance, prevent sulphation and permanent capacity loss.
  2. Charge profile recommendations correspond to battery voltages at 25°C (77°F). For temperatures below, adjust +5mVPC/°C (+3mVPC/°F). Temperatures above, adjust -5mVPC/°C (-3mVPC/°F). Temperature compensated charging helps ensure optimum battery runtime and life performance.
  3. Charge profile recommendations depend on application and charger. IUI (or IUI with Pulse) is appropriate for applications that require frequent and deep discharges. IUU is appropriate for applications that are on standby and cycled less frequently.
  4. IUI with Pulse algorithm uses a pulse termination criterion. The finish current is pulsed on and off in order to keep the battery voltage at a minimum while still reaching target overcharge. If average VPC exceeds U4 and the charger output has been on for more than 30 seconds, the output is shut off until VPC falls to U3.
  5. IUI Charge Profile (if applicable), may have a continuous float phase added (2.27VPC).

Discover® reserves the right to make adjustments to this publication at any time, without notice or obligation. Data in this publication are for reference use only and models may vary from shown. It is the responsibility of the reader of this information to verify any and all information presented herein. For more information contact us at [email protected]

Sours: https://discoverbattery.com
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