DwG motorcycle Speakers on a Zev 7100

Monday, December 13, 2010 - DwG motorcycle Speakers on a Zev 7100

This is a really cool video a customer sent in who had purchased a Zev 7100 electric motor bike. He did the install and then filmed the discovery process to see how they worked! This is a great testimonial and review for DWG waterproof motorcycle audio speaker kit with mini amp and wireless remote!

Care and Maintenance of SLA Batteries



L to R: SLA batteries in order, for 1500 e-bikes, black is for 3000 watt e-motorcycle, grey, used in our 3000 watt e-trikes

PLEASE NOTE: Topping off of batteries is only good if they are discharged 50% or less! But not less than 20%. Most batteries have some sort of cycle rate:

IE: 500 cycles before they began to lose a lot of their power. That means 500 times charging. The fact is, that always using only 50% or less of your batteries capacity before charging again, will greatly extend its life. Conversely, using 80, 90 and 100% of the capacity will greatly reduce the number of cycles possible.

You should never discharge a lead acid battery lower than 80% of its capacity (20% charge left in the battery).
An SLA battery is generally rated at 300 cycles. This is an average. With better care and discipline, you can get more than 300 cycles from an SLA battery. Perhaps as many as 800, Of course, if you abuse the battery, it is likely that you will get less than 300 cycles from your battery!

Care and Maintenance of SLA Batteries (Sealed Lead Acid Batteries)
SLA batteries also love to be charged on a regular basis and leaving a battery in a very low state of charge for any period of time will do irreversible damage to the battery. SLA batteries that are fully charged may be stored up to six months with very little detrimental effect. But to keep them at optimum condition, charge your scooter battery pack often, after every use if 50% or below capacity is realized. If you are storing your EV for long periods of time, make sure your batteries are fully charged before doing so. If you will be away from your EV for more than six months or storing it for that period over a winter, make sure you or someone else charges the batteries before the mentioned six month period is up.

Undercharging - is caused by not allowing the charger to restore the battery to full charge after use. Continuously operating a battery in a partial or low state of charge may cause premature battery failure.
Batteries and freezing - It is also important to remember that a fully charged SLA battery will not freeze until the temperature drops below -92F, while a battery with a 40% charge will freeze at about -16F.

Physical Maintenance - An SLA battery is virtually maintenance free in terms of adding water or electrolyte (acid). You should never open it in an attempt to fill or repair it.

Electric Motorbike Tips 101

Dave with daughter Alysha on
1000 watt unit still going strong
after 4 years and 9000 kms on
the odometer!

Dave has been driving electric motorbikes going on 4 years now. Three of the 1000 watt models have over 9000 kilometers on their odometer and we have only had to change the batteries just recently.

Here are some tips from Dave on how to care for and ride them to get the most out of your electric-bike:

Caring for and riding electric motorbikes!


1. If you use the bike daily, charge it daily. You cannot over charge the units, the charger shuts off when complete.

2. Never use the battery pack to ZERO so that you have to walk the bike home, draining the batteries to zero reduces battery life.

3. A low tire can cost you a lot of distance, make sure tires are always filled to spec and not low.

4. When climbing a long hill, do not carry another rider or a heavy load.

5. Before a hill if there is a downgrade, speed up to the speed limit so as to help your upward momentum.

6. Once a month check all visible bolts and screws they may need tightening.
7. Obtain same canned “fix a flat” carry it with you in case of a flat tire you can fix it on the spot.

EV consultant Dave Dewbre on his
3000 watt e-bike.

8. Check the oil and change it once every year, the oil in the drive gear, not motor. Have technician show you how. It takes 3 drops.

9. Keep the entire bike, wheels and all surfaced except the seat waxed to help preserve the finish, especially here in the tropics.
10. Use Armoral or similar for the seat cover.
11. Always use the CENTER stand when the side stand is not as safe.
12. Use slow, steady, even and smooth acceleration to increase your driving distance.

Dying man- Gets his last wish is to ride his Electric trail bike

Environment Friendly Online store received an order for a ZEV5100 Trail and long range Utility electricbike. It is the world's first street legal electric trail and dirt road motor scooter! It can take to the pavement and serve as a commuter bike. The lead time on production is normally 90 days.

Shortly after the order was placed the man wrote an email politely asking if they could speed up the production since he was diagnosed with a fatal liver disease and he may not even have 90 days to live! His only wish is to be able to ride and enjoy the E-trail/utility bike as much as he can before he dies!

Here is the text from the email...the part with him dying was added only as a P.S!

"As to what color I would like. The Camo is what I choose. Ps I would would like it if your team could put together one for myself sooner than 90 days as I have been diagnosed with I rare type of Liver cancer called hamagioendothemaloma. Say that three times fast Ha! So I may have (months) to enjoy it. Thank you for what ever you can do for me. Best regards, P" (real name kept private to respect his privacy).

It turns out that this hamagioendothemaloma cancer, is the eighth most common cause of cancer deaths in men.

Two seconds after the staff got the email, the factory wrote back and said they would pull parts of their own personal E-bikes and have the other parts flown in by airfreight ASAP so the man can get it as soon as possible.

Everyone is working fast and furious to make this last wish come true for him. Will keep you posted as this develops.

As as update to this story, when the bike was made in record time, they tried for 3 days in deliver it and he wasn't around. Dave felt so bad, he was actually depressed, he was so worried that the customer had passed away before he could get the bike.  Well he finally responded to an email saying he was out of town, and he has indeed gotten his wish. They e-trail bike has been delivered.

Green Tech EcoCenter blessing

1500 watt units - cost only 13.49 PHP per 60 Kilometers

Dear friend Father Fernando Suarez
dropped by and gave an informal blessing
to the GT Eco Center.

The famous healing priest and good family friend, Father Fernando Suarez, dropped by our Green Tech EcoCenter to say Hi. He was in Puerto Princesa to do a tennis tournament for the prisoners at Iwahig Prison without Bars.  We asked him to bless our establishment even though he wasn't really prepared, since it was just an impromtu visit, but he did perform an informal blessing of the center and all of the electric motorcycles and vehicles on the lot!

We had business guests from Manila, the makers of the fabulous Electric Jeepney, Rommel Juan and Bong Cruz and they were able to meet Father for the first time. Their E-jeep is now plying the roads of Makati and other cities in the Philippines to help cut carbon emmissions.  Thousands of people die of bronchial disease every year in Manila from breathing the air pollution caused by the gas belching vehicles.

The city of Puerto Princesa bought one of their electric jeepneys which is housed and dispatched from our Green Tech EcoCenter.  Dave and I have been testing it and using it in the city's various parades to educate the public about electric vehicles and their benefits.

Rommel Juan of PHUV, Inc and famous restaurant franchiser of  Binalot restaurants!

Rommel Juan of Electric Jeepney Philippines with Father Fernando Suarez

Front left to right: Rommel Juan, Mayor Edward Hagedorn  Back left to right: Bong Cruz and Diana Limjoco of Green Tech EcoCenter, Puerto Princesa, Palawan

Add caption

Mayor Edward Hagedorn with former GTE, GM, Montri Manzano

The mayor is a pioneer in researching and using electric Trikes and is trying to replace all of the gas belching tricycles on the roads now with electric versions. Dave Dewbre has been developing a few models to test on the roads of Puerto Princesa, Palawan.

Eagle Electric motorbikes- Philippines

The new 1500 watt Eagle motorbikes arrived in Puerto Princesa and Manila shops night before last. These are stronger than the 1000 watt units that Green Tech EcoCenter staff have been driving for 3 years now.

Dave first bought several Eagle Ebikes for himself to test when we lived in Subic Freeport. We have been hooked on them since. Dave, being the EV enthusiasts and user, realized the need to also service the units and has made sure that no matter where you buy one, you won't be left with no one to turn to if you need a new part or service. I went around to traditional gas motorcycles shops today and it seems these E bikes are cheaper than some 125cc models.

Dave Dewbre in Puerto Princesa, Palawan, Philippines. Showing an expat how easy it is to ride the electric otor bikes. Having been around them and seeing them used by staff, it seems they are pretty maintenance free. Not having to fill up with gas is a real joy. The quiet, noiseless and zero smoke ride makes it a real pleasure to be on.

It's not as fun in PPC to drive them as it was in the Subic Freeport housing area.  But for practical purposes like sending the staff on errands,they are still reliable and cheaper to operate than the gas versions. Hopefully someday, PPC will go all electric and dispense with the gas belching, noisy traditional gas motorcycles and tricycles.
Dave used to take Alysha for rides in a kangaroo type baby harness since she could hold her head up by herself. You can see how happy she is!

Electric Jeepney Philippines by PHUV

The city of Puerto Princesa latest electric vehicle acquisition! The E Jeepney by PHUV (Philippine Utility Vehicle, Inc.) They dropped this off at our Green Tech EcoCenter, the authorized service/maintenance and dispatch center for all the city's EV's.

We tested it last night and it is the smoothest ride of all the EV's in the city's inventory.

The charger is a manageable size.

Original Article January 28, 2008

PHILIPPINES/AUTOMOTIVE INDUSTRY
Auto parts makers to produce Pinoy electric jeepney

Except from article:
The entire Climate Friendly Cities Program will therefore complement the Waste Segregation Program of the government, convert biodegradable household wastes into electric power, then use this electric power to charge and operate smoke-free electric jeepneys to provide transport in an environment-friendly public transport system and help save the environment.

 It includes MVPMAP and is funded by a Dutch NGO, the DOEN Foundation, which will fund 50 units of the emission-free electric jeepneys for the program.

Eagle Electric Tricycles Puerto Princesa, Palawan

Eagle Electric tricycles and electric motorbike at Baywalk, Puerto Princesa, Palawan, Philippines. February 25, 2010

Mayor Edward Hagedorn has always been a pioneer in environmental issues. These are the latest electric tricycle prototypes in Puerto Princesa, Palawan developed by Dave Dewbre,EVC (Electric Vehicle Consultant).

Green Tech EcoCenter in Puerto Princesa has made them available as their exclusive distributors and they are testing the bodies and motors, while also developing a livelihood project along with to assemble them in Puerto Princesa, Palawan to create more jobs as well as preserve the fresh air in the city.

Images Asia Magazine came to do a magazine photo shoot of  Mayor Ed Hagedorn and Diana Limjoco of Green Tech EcoCenter and they shared these photos with us.

Photos by Voltaire Fernandez Domingo for Images Asia Magazine

Mayor Edward Hagedorn of Puerto Princesa City, Palawan Philippines enjoyed driving the latest electric tricycles from Green Tech EcoCenter.

Mayor Edward Hagedorn in front of the latest electric trike prototypes.