Fitting mobility 12volt AGM battery.

I do understand the initial reaction to stick with the tried and true, especially in regards to the things related to the Prius system, though the OEM 12v battery is not known for its robustness or longevity. The fact that the OEM and typical replacement batteries cost more than twice as much as typical car batteries is reason enough to be open to alternatives. So far I haven't seen anything to discredit these more robust AGM batteries that John has suggested for use in the Prius. The fact that he has used them for years in his mobility use with deep discharging and they have lasted, in addition to using one in his Prius for at least a year with no issues lends support for its viability. Without evidence to the contrary, at one third the cost of the OEM, this 12v used for Prius 12v use seems like a no-brainer to me.

 

haha...

 

I emailed and made offers to this guy for 2 battery's over the past 2 days and have heard nothing so I would strongly recommend finding them elsewhere.

 

Correct, the DC/DC converter regulates voltage on the 12V bus to be ~13.8V. Whatever current the battery wants to take given that charging voltage (up to 100A) is what it will receive.

 

I had wondered about your 4 amp assertion before, given threads I'd read about people powering substantial inverters for emergency home power.
Very interesting report to be sure.

 

Just to clarify somewhat to compare to a hose and what not.
The voltage is the pressure, amps is the flow rate (gallons per minute). The battery will only accept/draw so many amps, but the voltage has to be high enough (greater than the battery charge). For a gel or deep cycle battery the max is usually no more than 14.1 volts, it sounds like the charging system is more than capable of charging/maintaining Gel or AGM batteries. The flow of electrons doesn't care.

 

Does this switch shut down all power making the dash inoperable?

 

So what price is reasonable for an AGM deep-cycle one?

Here's one for under 100 euro (UK)
And another one for under 110 euro (US)

Yet I can't for the life of me find anything under 170 euro here... And I've called electrical wheelchair companies, battery 'manufacturers', large battery-sales points, etc.

Am I (due to false advertising?) mistaken stand-by batteries for cyclic ones like one of the sales persons warned me about?

 

Thank You

 

I bought the Power-Sonic 12V 35Ah (Battery Replaces 33Ah Ritar RA12-33) should get it tomorrow and install over the weekend. It cost $70 delivered. I will keep everyone updated. Here are the specs..


Product Description



The Power-Sonic valve regulated sealed lead acid batteries are maintenance free, easy to handle, rugged and economical. It has a characteristic of high discharge rate, wide operating temperature, long service life and deep discharge recover.

• Dimensions (LxWxH): 7.7 '' x 5.2 ''x 6.1 ''
• 12V 35.0 Amp Hour
• Absorbent Glass Mat (AGM) technology for superior performance.
• Valve regulated, spill proof construction allows safe operation in any position.
• Power/volume ratio yielding unrivaled energy density.
• Approved for transport by air. D.O.T., I.A.T.A., F.A.A. and C.A.B. certified.
• U.L. recognized under file number MH 20845

RELIEF VALVE - In case of excessive gas pressure build-up inside the battery (usually caused by abnormal charging) the relief valve will open and relieve the pressure. The one-way valve not only ensures that no air gets into the battery where the oxygen would react with the plates causing internal discharge, but also represents an important safety device in the event of excessive overcharge. Vent release pressure is between 2-6 psi; the seal ring material is neoprene rubber.


PRODUCT FEATURES SEALED MAINTENANCE FREE - The valve regulated, spill-proof construction of the POWER-SONIC battery allows trouble-free, safe operation in any position. There is no need to add electrolyte, as gases generated during charging are recombined in a unique "oxygen cycle".
EASY HANDLING - No special handling precautions or shipping containers - surface or air - are required due to the leak-proof construction.

ECONOMICAL - The high watt-hour per dollar value is made possible by the materials used in a sealed lead-acid battery: they are readily available and low in cost.
LONG SERVICE LIFE - Under normal operating conditions, four or five years of dependable service life can be expected in stand-by applications, or between 200 and 1000 charge/discharge cycles depending on the average depth of discharge.
DESIGN FLEXIBILITY - Batteries may be used in series and/or parallel to obtain choice of voltage and capacity. Due to recent design breakthroughs, the same battery may be used in either cyclic or standby applications. Over 50 models are available to choose from.
RUGGED CONSTRUCTION - The high-impact resistant battery case is made either of non-conductive ABS plastic or styrene. Large capacity batteries frequently have polypropylene cases, all of these materials impart great resistance to shock, vibration, chemicals and heat.
COMPACT - Power-Sonic batteries use state of the art design, high grade materials, and a carefully controlled plate-making process to provide excellent output per cell. The high energy density provides superior power/volume and power/weight ratios.

HIGH DISCHARGE RATE - Low internal resistance allows discharge currents of up to ten times the rated capacity of the battery. Relatively small batteries may thus be specified in applications requiring high peak currents.
LONG SHELF LIFE - A low self-discharge rate may allow storage of fully charged batteries for up to a year at room temperature before charging is required. Lower storage temperatures enhance shelf life characteristics even further.
WIDE OPERATING TEMPERATURE RANGE - Power-Sonic batteries may be discharged over a temperature range of -40 ºC to +60 ºC (-40 ºF to +140 ºF), and charged at temperatures ranging from -20 ºC to +50 ºC (4 ºF to +122 ºF).
DEEP DISCHARGE RECOVERY - Special separators, advanced plate composition, and a carefully balanced electrolyte system have greatly improved the ability of recovering from excessively deep discharge. CONSTRUCTION PLATES (Electrodes) - Plate construction is the key to producing a good battery. Recognizing this, POWER-SONIC utilizes the latest technology and equipment to cast grids from a lead-calcium alloy free of antimony. The small amount of calcium and tin in the grid alloy imparts strength to the plate and guarantees durability even in extensive cycle service. Lead oxide paste is added to the grid to form the electrically active material. In the charged state, the negative plate paste is pure lead and that of the positive lead oxide. Both of these are in a porous or spongy form to optimize surface area and thereby maximize capacity.
SEPARATORS: POWER-SONIC separators are made of non-woven glass fiber cloth with high heat and oxidation resistance. The material further offers superior electrolyte absorption and retaining ability, as well as excellent ion conductivity.
ELECTROLYTE Immobilized dilute sulfuric acid: H2SO4.

CONTAINER - Case material is ABS, high-impact plastic resin, styrene, or a polypropylene-polyethylene copolymer with high resistance to chemicals and flammability.
LEAKPROOF DESIGN & OPERATIONAL SAFETY - POWER-SONIC batteries have been approved for shipment by air, both by D.O.T. and I.A.T.A. U.L.'s component recognition program for emergency lighting and power batteries lists POWER-SONIC under file numbers MH14328 and MH14838.

TERMINALS - Depending on model, batteries come either with AMP Faston type terminals made of tin plated brass, (post type terminals of the same composition with threaded nut and bolt hardware.

 

No outlet to connect to the vent tube?

 

Do you have a link? Yes, the vent tube is a must have.